Updated at: 29-12-2022 - By: Helen Skeates

The firmness of your bed can be easily adjusted without breaking the bank by purchasing a mattress topper. This sleep aid is an extra layer of comfort that you put on top of your regular mattress to increase motion isolation, temperature control, and overall sleep quality. It may also help your mattress last longer by protecting it from daily use.

Due to the greater demand for queen and king size beds, retailers may carry fewer options for twin XL mattress toppers. However, there are a number of exceptional choices.

Our top recommendations for the finest twin XL mattress toppers will be broken down to help you find the right one for your sleeping position, comfort requirements, and budget. We will also address frequently posed questions, discuss the many available toppers, and highlight key factors for shoppers to keep in mind.

What is a Mattress Topper Used For?

If your mattress is on the firm side, adding a topper can make a huge difference in how much you enjoy sleeping on it. A mattress topper allows you to customize your sleeping surface to your preferences. A mattress topper can be placed on top of a regular mattress to improve protection and comfort. Mattresses tend to sag more after being used for some time. A mattress topper might serve as a preventative measure because of the added layer of protection it provides. One-sided mattresses that can’t be flipped over are a prime candidate for a mattress topper. There is a wide variety of mattress toppers available; however, it is important to select one with a high-quality filling.

Best Mattress Toppers for College Dorms 2022 | Mattress Clarity

Benefits of a Mattress Topper

We’re going to show you all the ways in which a mattress topper improves your life. Every bed needs a mattress topper, and here’s why:

1. A topper protects your mattress from three evils

The three enemies that every mattress must face are sweat, dead skin, and bacteria. We perspire and shed dead skin cells throughout the night, and both of these things eventually find their way into the mattress. A mattress topper, which is a protective covering placed on top of an existing mattress, can be used to address all three of these difficulties.

2. A topper makes a (hard) mattress more comfortable

Is your bed as firm as a rock, making it difficult to find a restful posture during the night? The purchase of a new mattress could put a strain on your finances, but a mattress topper is a lot more affordable alternative. The Dual Layer Mattress Topper combines convenience and luxury by adding a plush cushioning layer to your mattress and making it a breeze to clean thanks to its zippered structure.

3. Some mattress toppers are home washable

You read that correctly. There are mattress toppers that can be machine-washed at home. Very convenient and clean, especially considering that mattresses cannot be washed. The use of a mattress topper means you can finally give your bed a thorough cleaning without worrying about damaging the mattress below. Having a clean bed to crawl into at night? There’s nothing better. We provide a washable mattress pad called the Spundown Mattress Enhancer that is stuffed with 100 percent Smartfil® fibers for ultimate comfort and support. The mattress pad may be cleaned easily with a machine wash at 60 degrees Celsius.

4. A topper helps to extend a mattress’ lifespan

A mattress topper can increase the lifespan of a mattress by acting as a protective layer. The simple ability to flip the topper over and use both sides will extend its lifespan significantly. You should get the most use out of your new mattress because it is an investment. Worldwide, the best athletes use Nick Littlehales’ R90 Mattress Topper, which he created as a result of his extensive experience as a sports sleep coach. In addition, there is currently a 50% price reduction.

5. A mattress topper has health benefits

Your health can benefit from using a mattress topper. The use of a mattress topper might be a lifesaver for allergy sufferers. Make sure to choose a topper for your mattress that can be washed at 60 degrees Celsius, as this temperature is high enough to kill dust mites. No more runny noses or nighttime sneezing!

The Best Twin XL Mattress Toppers

ViscoSoft Select High Density Mattress Topper

Who it’s best for:

  • Individuals who sleep on their sides and backs
  • Individuals who sleep hot and desire or require close contouring
  • Isolation-loving pairs who go on dates


  • The rayon cover, made from bamboo fiber, is breathable and helps maintain a comfortable surface temperature.
  • Pressure spots can be alleviated thanks to the gel-infused memory foam’s close contouring.
  • Trial run lasting 90 nights

The Select High Density Mattress Topper from ViscoSoft features gel-infused memory foam that precisely molds the body to relieve pressure on the joints. It is hoped that the gel infusion and tiny perforations will prevent excess heat from accumulating in the topper, making it more comfortable to sleep on than many other foam options. Memory foam can be customized with a variety of infusions, including charcoal for cooling and lavender for relaxation.

The rayon used to make the cover is derived from bamboo, making it a hypoallergenic choice. The cover’s mesh underside promotes airflow, and elastic straps keep the topper in place on your mattress. For convenience, the cover may be removed entirely and washed in the washing machine. The topper’s medium (5) texture strikes a nice mix between softness and firmness, making it suitable for a wide range of sleepers. Customers have a choice between a 2in and 3in model. Though both provide a comfortable sleep, the thicker option gives you more control over how your mattress feels.

As determined by our sleep experts, this topper is best suited for side sleepers weighing up to 230 pounds and back sleepers weighing less than 130 pounds. A thicker layer of memory foam provides relief for your hips and shoulders, and the mattress’ medium firmness is just right for supporting your back and ensuring proper alignment. The foam layer is great at dampening noise and movement, making it a good choice for couples whose sleep is constantly disrupted by one spouse rearranging their position in bed.

Mattress toppers from ViscoSoft can be tried out for 90 nights before actually purchasing. The company offers free shipping to consumers in the 48 contiguous states and a 5-year warranty on certain high-density mattress toppers.

Brooklyn Bedding Gel Swirl Memory Foam Topper

Memory foam with a gel infusion, 1-2 inches thick

Who it’s best for:

  • those with a heightened sensitivity to pressure points
  • Individuals who favor sleeping on their sides
  • Discount hunters


  • Prices are comparable to those of competitors.
  • Pressure points are alleviated by the memory foam’s gel infusion.
  • It comes in two distinct styles.

Consider Brooklyn Bedding’s Gel Swirl Memory Foam Topper if you’re in the market for a reasonably priced memory foam topper. If you’re looking for a model that can readily shape to your physique, this 2.5 PCF one should be an excellent choice. This model’s softness is best suited for side sleepers and those weighing less than 230 pounds. Persons over 230 pounds of body weight may feel more comfortable on a firmer topper.

Both a 2-inch and 3-inch profile are available, with the latter providing more contouring for those who seek it. This variant of memory foam addresses the problem of the material’s tendency to retain heat by injecting gel into the foam. If you’re looking for a memory foam mattress topper, this one should keep you a little cooler at night than ones that don’t use gel.

Users should be ready to spot clean or add their own cover as this topper does not come with one. This design is available in twin XL and six more common sizes. If you aren’t satisfied with your Gel Swirl Memory Foam Topper within 30 days of receipt, Brooklyn Bedding will gladly refund your purchase price plus shipping costs. All purchases are protected by a 3-year warranty against manufacturing flaws in the course of regular use.

Sleepyhead Gel Topper

The gel memory foam is two to three inches in thickness.

Who it’s best for:

  • Students living in dorms
  • Those want to make a major adjustment to their mattress’s feel
  • Persons experiencing painful pressure sensations along the spine


  • The close conforming nature of solid memory foam helps to correct posture and relieve pressure.
  • Twin XL duvets come in two different styles.
  • It has a washable cover that can be removed.

Mattress toppers are ideal for college students who sleep on bunk beds. Since dorm mattresses tend to get a lot of use and might develop surface imperfections over time, a topper can greatly enhance the sleeping experience. The Sleepyhead Gel Topper is an excellent solution for students having trouble sleeping on their mattresses. Those in the market for a twin XL topper can select from options with either a 2 or 3 inch profile. However, the shorter model still offers a perceptible comfort adjustment for mattresses with minor wear and tear, while the longer one is better suited for severely used mattresses.

The topper’s two iterations are both made from memory foam that has been injected with cooling gel in an effort to dissipate your body heat while you snooze. Extra temperature regulation is provided by the foam’s polyester cover, which is permeable. The topper is removable and can be washed in a standard washing machine and dryer, making it suitable for use in any college residence hall. The medium (5) firmness of the topper means it’s a good choice for those who suffer from shoulder, back, or hip ache when they wake up. The foam conforms to your body’s shape with just the right amount of give without becoming overly mushy. Based on our sizing and testing, we can confidently say that this topper is ideal for side and back sleepers weighing up to 230 pounds.

The Gel Topper is a great alternative for students on a tight budget due to its reasonable price and free shipping to anyone in the 48 contiguous states. A risk-free 30-night sleep trial is included with every order. Those who choose to maintain the cap will also benefit from a manufacturer’s warranty covering structural flaws for the next five years.

Silk & Snow Organic Mattress Topper

Raw materials are organic Dunlop latex that has been verified by the Global Organic Latex Standard (GOLS).

Who it’s best for:

  • Those who have trouble falling asleep on a foam mattress
  • Smokers in bed
  • Environmentally conscious consumers and users


  • Dunlop latex provides a sturdy and responsive core.
  • A cotton exterior and less heat retention allow for superior temperature regulation.
  • All of the components have been certified organic.

Whether you sleep on your side, stomach, or back, pressure points are more likely to form on a mattress with an uneven or bumpy surface. As long as it provides uniform support, a mattress topper can help with this problem in the short term. Dunlop latex, included in the Silk & Snow Organic Mattress Topper, is a dense and long-lasting material that is more resistant to drooping and indentations than foam. Because latex is elastic by nature, the topper will give a little as you get on it, making it easier to move around on the bed.

Amazon.com: Memory Foam Mattress Topper 2 Inch Twin XL, Single XL Foam Mattress Topper for College Dorm, Gel Soft Foam Mattress Pad, Extra Long Memory Foam Mattress Topper Bed for Pressure Relieving :

The topper can be switched between two different levels of firmness. Because of its close contouring and cushioning, the medium (5) feel is ideal for side sleepers. Cushioning for the hips and shoulders is especially helpful for people who sleep on their sides. You may prefer the firm (7) feel if you sleep on your back or stomach, which both call for extra torso support. The thickness of both models is 2 inches.

This topper is great for warm sleepers because the cover is made of breathable organic cotton and the latex doesn’t absorb much heat. The topper’s cotton and latex are both certified by the Global Organic Textile Standard and the Global Organic Latex Standard, so they should appeal to people who are concerned about the environment. Such certifications attest to the fact that the materials have been thoroughly vetted for their eco-friendliness at every stage of the production process. The cover is easily removed and may be laundered in your home washing machine, however the latex should only be spot cleaned.

Silk & Snow provides free shipping on all Organic Mattress Toppers to addresses within the 48 contiguous states and provincial locations in Canada. There is a 100-night trial period with every order. Those who opt to keep their topper will also be provided with a 3-year latex guarantee and a 1-year cover warranty, respectively.

Turmerry Organic Latex Mattress Topper

Two to Three Inch Organic Dunlop Latex Certified by the USDA

Who it’s best for:

  • Not everyone like the way memory foam molds to their bodies.
  • Smokers in bed
  • Anyone looking to put money into a high-quality finishing touch


  • made from organic Talalay latex, which is both pliable and elastic.
  • With a choice of two shapes and three degrees of firmness
  • Its removable organic cotton cover is machine washable.

If your mattress has lost its shape or support over the years, a topper might be a lifesaver for side sleepers. In order to prevent spinal misalignment and pressure sores, those who utilize this position require a level surface and additional padding at the hips and shoulders. One reason why the Turmerry Organic Latex Mattress Topper is a suitable choice for side sleepers is because it can be customized to meet the demands of people with varying body types and levels of comfort preference.

There are three levels of stiffness to pick from: gentle (level 3), medium (level 5), and medium-firm (level 6). (6). In general, side sleepers weighing less than 130 pounds will find the soft option to be most comfortable, while those weighing more will appreciate the support afforded by the medium and firm options. You can customize the feel of your mattress by choosing between a two- or three-inch profile for the topper.

Talalay latex, a resilient and responsive substance that contours to the body and feels somewhat bouncy, constitutes the topper’s core. Unless the mattress is really soft, you shouldn’t sink too much if the firmness level is appropriate for your weight. People who find the softness or lack of support of memory foam may find success with a Talalay latex mattress. The cooling effects of the latex are boosted with an organic cotton cover, and the material is naturally breathable. The cover is easily removed for washing in a machine.

The Organic Latex Mattress Topper is a fantastic option for frugal buyers due to its below-average price and free shipping to any location within the contiguous United States. You may try out your new mattress topper risk-free for 60 nights, and if you like it, you’ll have a full five years of protection from the manufacturer.

GhostBed Memory Foam Topper

Made with three inches of zoned gel memory foam

Who it’s best for:

  • Those who have painful pressure points in their shoulders, hips, and/or lower back
  • People who typically become hot while sleeping on memory foam toppers
  • Bed-wetting is a common problem among children.


  • Having five distinct levels of firmness, memory foam provides superior support.
  • Surface temperatures are lowered through cooling channels, which move air around and disperse people’s thermal energy.
  • The cover may be washed in a washing machine and is also waterproof.

When it comes to supporting your body as you sleep, the GhostBed Memory Foam Topper is in a league of its own. There are five different “firmness zones” on the surface. Since most persons are lighter in the upper body and lower body, softer foam is able to conform closer to these areas, while firmer foam strengthens the core to prevent sinkage. Because of its zoned construction, any sleeping position one favors will likely result in less pain.

Intricate grooves throughout the surface of the foam encourage continuous airflow, allowing heat to be dissipated quickly and effectively. Cooling gel is incorporated into the foam for ventilation, and the Ghost Ice cloth used for the cover is icy to the touch.

The cover is elasticized all the way around, just like a fitted sheet. The cover is meant to go over the topper and the edges of your mattress rather than encasing them. This topper is designed to work with the great majority of modern mattresses thanks to its 18-inch pocket depth. The fabric’s resistance to liquids means it may withstand accidental spills without suffering any damage.

Delivery of a GhostBed by ground service is free of charge anywhere in the 48 contiguous states. All transactions on the topping are final, although the manufacturer offers a 5-year warranty against structural flaws.

Birch Organic Mattress Topper

Talalay Latex is the material.

Who it’s best for:

  • Individuals who sleep on their sides and backs
  • Eco-conscious consumers are picky about the goods they buy.
  • Those who are suffering from a buildup of unpleasant pressure


  • Latex provides the ideal combination of shape retention and structural integrity.
  • The woolen layer makes for a soft feel.
  • Green Seal, Inc.’s Gold Standard and the Global Organic Textile Standard

With careful construction and premium materials, the Birch Organic Mattress Topper is an excellent addition to any bed. With its organic and environmentally friendly design—and accompanying certifications—this model stands out from the crowd.

The topper is three inches in height, making it relatively tall for a topper. The organic cotton cover is then topped with the organic wool that provides the luxurious feel and fire protection. Talalay latex, which forms to the shape of the body while yet being strong enough to provide good support, makes up the majority of the topper. The GOTS certification for the latex guarantees that it comes from an organic source, and the GREENGUARD Gold certification for the topping as a whole proves that it emits no harmful volatile organic compounds.

This topper is great for side and back sleepers because of its medium (5) firmness and balanced level of contouring and support. These sleeping positions require a firm surface to prevent the lower back from sinking in while also cradling the shoulders, hips, and spine. Since latex, wool, and cotton are all inherently breathable, hot sleepers should find this topper to be very comfortable.

Customers may test out the topper risk-free for 100 nights, and if they like it, they’re covered by a 10-year warranty from Birch. Each and every one of the 50 states receives free shipping.

Tempur-Pedic TEMPUR-Topper Supreme

TEMPUR Memory Foam is the material.

Who it’s best for:

  • Isolation-loving pairs who go on dates
  • Individuals who sleep on their sides and backs
  • Those whose mattresses are saggy or have depressions


  • Pressure points are reduced because to the memory foam’s ability to conform to the shape of the body.
  • The machine-washable, soft quilted polyester cover is very easy to maintain.
  • Contoured and supportive in an ideal middle ground

The Tempur-Pedic TEMPUR-Topper Supreme’s compact size and high-density make it an excellent choice for anyone in need of a lightweight, yet sturdy, travel mattress. It’s a good option for campers and people who frequently have guests around.

The top is encased in a quilted polyester cover, making for a plush sleeping experience. All of the cover may be taken off and washed in the washing machine for convenient maintenance. The pressure-relieving TEMPUR memory foam used in the core is unique to this mattress. Since foam is so good at dampening noise and motion transmission, this topper is ideal for couples who have trouble sleeping through the night due to their partner’s restlessness.

Our team’s side and back sleepers, including those up to 230 pounds, enjoyed the thick 3 inch profile and medium (5) feel. Customers with older mattresses may also notice that the topper mitigates the appearance of deep impressions in the sleeping surface. If you live in the 48 contiguous states, Tempur-Pedic will send your mattress to you at no cost. However, each TEMPUR-Topper Supreme comes with a generous 10-year warranty and a lifetime of comfort.

Saatva Mattress Topper

High-density polyfoam, graphite-infused memory foam, and Talalay latex with ventilation are the materials of choice.

Who it’s best for:

  • For consumers who want a cap that can be built in a variety of ways,
  • Smokers in bed
  • Those who have trouble getting comfortable during the night may toss and turn or switch positions frequently.


  • There are three separate models available, each with its own look and feel.
  • Protective organic cotton covers are included with every topper.
  • Tight corner bands eliminate the possibility of movement.

Since every topping material has its own set of advantages and disadvantages, it might be difficult for first-time buyers to make the proper choice. Saatva offers three distinct topper options, each made from a unique material.

If you’re on a tight budget, I recommend getting the “Foam” topping. This 1.5-inch-thick, high-density polyfoam topper is the firmest of the three options and also the least expensive. The topper can relieve pressure for side and back sleepers up to 230 pounds since the foam conforms uniformly to the body without providing the typical “hug” of memory foam.

The “Graphite” cap is priced in the middle of the assortment. Graphite, which has natural cooling characteristics, has been incorporated into the top layer of the memory foam to help mitigate the typical heat retention issues. Denser foam is used for the second layer, which provides even more cushioning. This Saatva topper has the thickest profile at 3 inches, and its medium soft (4) feel will work well for side and back sleepers weighing 230 pounds or fewer.

The most expensive option is the “Latex” cover. The total thickness of the Talalay latex used in this model is 1.5 inches. Since the latex is perforated in a number of places, air can easily circulate, making this topper a good option for those who like to sleep warm. With a similar medium soft (4) feel to the Graphite topper, this one may be preferable for back sleepers who weigh more than 230 pounds because to the subtle contouring of the latex.

A cover made of organic cotton helps maintain a comfortable sleeping temperature on all three of these toppers. The elastic corner bands included in each model keep the topper in place and ensure it doesn’t move about, making them ideal for those who change positions frequently during the night. Each Saatva topper comes with a 1-year guarantee, a 45-night sleep trial, and free shipping to any address within the 48 contiguous states.

Puffy Mattress Topper

Memory foam of 2.5 inch thickness

Who it’s best for:

  • Individuals who favor sleeping on their sides
  • Those who have trouble getting comfortable during the night may toss and turn or switch positions frequently.
  • Those in need of a mattress pad with a generous trial period


  • The options range from gentle to firm.
  • Cover is removable and can be used in place of a fitted sheet during laundering.
  • We provide a free 101-night trial and a lifetime guarantee.

Memory foam toppers are highly recommended for side sleepers who frequently have pain in their shoulders, lower back, and hips while they are resting. The Puffy Mattress Topper is constructed with a dense memory foam core that gently cradles your body to alleviate pressure points and encourage proper spinal alignment. Selecting a soft (3) feel for the topper is best for those who desire deep conforming, while those who sleep on their side (and possibly their back or stomach) and require additional support should go with the firm (7) feel.

The topper’s cover, made of bamboo-derived rayon and polyester, helps counteract the heat retention of the memory foam underneath. The cover may be removed and washed in a machine to preserve the topper in pristine condition. The elasticized border and deep pockets on this topper cover allow it to be tucked around the mattress’s corners like a fitted sheet. There are little grooves on the bottom so it won’t move around in your sleep. In spite of your tossing and turning or frequent repositioning in bed, the topper should remain in place thanks to these two design elements.

The Puffy Mattress Topper has a reasonable pricing for a memory foam product, and shipping is free to anyone in the 48 contiguous states. There is a 101-night sleep trial available with every transaction, giving you plenty of time to determine if the topper is perfect for you. If you decide to keep it, there is a lifetime guarantee attached to it.

How to Choose a Twin XL Mattress Topper

A mattress topper is a thick layer that may be placed on top of your mattress to increase the level of comfort. Toppers range in thickness from 1 to 4 inches. Adding a mattress topper to your bed is a great way to improve the comfort of your bed and get more use out of your present mattress by adjusting its hardness, temperature, and/or other softness features. Twin XL toppers, with their extra length, can be used to make a standard twin bed suitable for an adult, or to divide a California king bed in two so that each partner can customize their level of comfort. A shopper’s options for twin XL mattress toppers may be limited because not all manufacturers produce them. Consumers looking to compare products should think about how important features like hardness, thickness, and quality of construction will be to their needs. The correct match can be difficult to find, but we’ll break down all these variables and more to make it easier for you.

What to Consider When Purchasing a Twin XL Mattress Topper

It’s not always easy to find replacement bedding. Companies selling mattresses try to appeal to the widest possible audience in their advertising, despite the fact that every customer has slightly different requirements and preferences. Finding the right twin XL mattress topper for you will require consideration of both your unique priorities and performance considerations.


Most twin XL toppers may be purchased at $75 to $250. The higher the price, the more likely it is that the topper is made of high-quality materials, but this is not always the case. In the medium to lower end of the usual price range, you can find many high-quality, comfy mattress toppers. Reviews from customers might help you decide if a topping is worth the money, but it’s important to remember that these opinions are just that: opinions.

How to Sleep

Superior Components

Capacity to Cool

Type of Stiffness


Stress Reduction

How much pressure relief you require may depend on how you sleep and how much weight you carry. While a sleeper weighing less than 130 pounds may benefit greatly from the contouring capabilities of a soft topper, a heavier sleeper (say, over 230 pounds) will certainly need a firmer one.

9 Best Twin XL Mattress Toppers: Memory Foam, Gel, Cooling, Tempur-Pedic | Apartment Therapy

Which Type of Mattress Topper Should I Choose?

Whether or whether a mattress topper is worth the investment depends on the sleeper’s individual level of comfort, their specific needs, and their financial situation. There are many various kinds of mattress toppers on the market, and each has its own pros and cons to consider.


Polyfoam mattress toppers, one of the most common options, are inexpensive and flexible. Polyfoam, like other types of foam, can cushion and support your body in equal measure. Though comfortable, certain foam-based toppers don’t hold up well over time.

Memory Foam

It’s true that polyfoam mattresses are more affordable, but memory foam toppers mold to your body more closely. Unfortunately, this also means that memory foam tends to trap body heat, which negates some of the benefits it provides (great pressure relief). To reduce the likelihood of overheating, memory foam toppers may have ventilation channels, gel infusions, or breathable covers.


Mattress toppers made of latex are popular because they provide a cool night’s sleep and good pressure reduction. Because of its responsiveness and buoyancy, latex makes for a more comfortable and mobile sleeping surface. Latex toppers, on the other hand, tend to be more expensive than comparable versions.

Feather and Down

In order to have a more comfortable night’s sleep, many people choose to invest in a feather or down topper. The use of a down topper on your mattress will give it a luxurious, pillow-top appearance and feel, but it will not provide much in the way of additional support or pressure relief. The cost of premium reduction is often quite high. Feather toppers are typically less expensive than down toppers and have more of a conventional shape.


Mattress toppers made from wool are a great option since they add a layer of soft cushioning while also acting as a thermal regulator and moisture barrier. Wool is a natural insulator and lasts a very long time. Wool mattress toppers, like those made from other natural materials, are typically more expensive than those made from foam.

Frequently Asked Questions About Twin XL Mattress Toppers

Can you use a twin topper on a twin XL mattress?

A twin topper can technically be used on a twin XL mattress, however doing so is not recommended. Compared to the 80-inch length of a twin XL mattress, a conventional twin mattress measures just 75 inches. A twin mattress pad will not cover the full extra long size of a twin XL bed. Although a twin topper might be adequate for a child’s bed or someone of average height, it will likely be too short for most people.

Can you use two twin XL toppers on a king mattress?

Two twin XL toppers can be used in tandem on a king-sized bed. If you and your partner have drastically different requirements for mattress firmness, this feature gives you the flexibility to customize the feel of each side individually. Unfortunately, when using two toppers on a single mattress, it’s easy to end up with a gap in the middle of the bed as you move around in your sleep.

What is the difference between twin and twin XL?

While mattress sizes tend to be consistent across brands, many consumers are still unsure what the difference is between a conventional twin and a twin XL. Standard dimensions for a twin bed are 38 inches broad by 75 inches long. The dimensions of a twin XL bed are 80 inches in length and 38 inches in width. The price difference between a twin and twin XL mattress is little, however a twin mattress may not provide enough space for taller people.

How much do twin XL toppers cost?

Prices for Twin XL mattress toppers can vary from $75 to $250. Cost-wise, they’re typically just a hair more than the same model in a twin size. The cost will be determined by the quality of the materials used to construct the cap.