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Full-size mattresses are good options for couples or individuals who prefer extra sleeping space. These mattresses are available in many materials, such as memory foam, latex, and hybrid. They are smaller than queen-sized mattresses.

This article provides a comparison of some of the best full-size mattresses available to purchase online and mentions considerations of what to look for when shopping for a new mattress.

Please note that the writer of this article has not tried these products. All information presented is purely research-based and correct at the time of publication.

Medical News Today follows a strict product selection and vetting process. Learn more here.

Best for a firm mattress: Saatva Loom and Leaf

Saatva Loom and Leaf against a blue background.
  • List price: from $1,195
  • Mattress type: memory foam
  • Firmness: relaxed firm or firm
  • Height: 12 inches (in)
  • Warranty: lifetime warranty

Saatva states that this mattress is its most premium model. The company offers free delivery, in-room setup, old mattress, and foundation removal.

Read our review of Saatva here.

The mattress contains layers of premium memory foam and high-density foam that, according to the company, provide pressure point relief and more stable support.

These layers include a cooling and breathable foam layer, a body-hugging high-density layer, a transitional foam layer, and base support.

The cover is organic cotton. The foam in the mattress itself has low emissions and meets CertiPUR-US standards. This means the foam does not contain any hazardous materials to human health.

People can choose between two firmness levels: relaxed, medium-firm, and firm.


  • The mattress comes with two firmness options that people can choose from.
  • The mattress comes with white glove delivery. This means the company representatives deliver the product and assemble it in the individual’s room. They also remove the old mattress.
  • It suits side sleepers with back pain.


  • The company does not ship to Hawaii or Alaska.
  • Some reviewers state that the mattress is very firm.
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Best for back and stomach sleepers: Tuft & Needle Original Mattress

Tuft & Needle Original Mattress against a blue background.
  • List price: from $745
  • Mattress type: memory foam
  • Firmness: firm
  • Height: 9.5 in
  • Warranty: 10-year limited-term warranty

Tuft & Needle states this firm memory foam mattress is most suitable for back and stomach sleepers. It contains gel-infused memory foam and heat-conducting graphite to help people remain cooler during sleep.

Read our review of Tuft & Needle here.

The mattress contains 6.5 in foundational support foam and a 3-in top layer of the company’s proprietary adaptive foam. The company states that the construction of this mattress provides motion control and contouring support.

This mattress ships in a box and comes with a 100-night trial. The foam is CertiPUR-US certified, and the company states that the mattress is compatible with most bed frames.


  • The mattress contains heat-conducting graphite to help keep the body cool during sleep.
  • It reduces motion transfer. This may be helpful for couples, as one partner’s movements do not disturb the other.
  • It fits in most bed frames.


  • Some customers found that it took them a long time to get used to the new mattress.
  • The sizes may not be very accurate.
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Best for a budget: Nectar Memory Foam Mattress

Nectar Memory Foam Mattress against a blue background.
  • List price: from $599
  • Mattress type: memory foam
  • Firmness: medium-firm
  • Height: 12 in
  • Warranty: forever warranty

This mattress has five layers: a stability base layer, a 7-in active support layer, a 3-in transition layer, and a 2-in layer of therapeutic gel memory foam that helps keep people cool during sleep.

All the foam in this mattress is CertiPUR-US certified.

The company states that this mattress offers a balanced mix of support, softness, and firmness and is suitable for all sleeping positions. This mattress relieves the shoulders, hips, and legs of extra pressure point relief.

Read our review of Nectar here.

People can also opt for the hybrid version of this mattress. The hybrid version may offer more airflow for those who sleep hotter.

Nectar offers a 365-night home trial and free shipping and returns.


  • The mattress suits all sleeping positions.
  • It suits hot sleepers, as it keeps the body cool during sleep.


  • The price increases if a person opts for the hybrid option.
  • According to reviews, the hips sink into the mattress which can be painful for the back.
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Best for zoned support: Casper Original Mattress

Casper Original Mattress against a blue background.
  • List price: from $895
  • Mattress type: memory foam
  • Firmness: medium
  • Height: 11 in
  • Warranty: 10-year limited-term warranty

This mattress has three different zones of ergonomic support: softer foam around the shoulders cradles the upper body, while firmer foam around the lower back, hips, and waist helps improve spinal alignment. It has a durable base for full body support and to prevent sagging.

Read our review of Casper here.

The perforated foam in this mattress lets the heat and humidity out and promotes airflow, which can make for cooler sleep. It reportedly offers good motion control and helps prevent aches and pains.

Casper offers a 100-night trial and free shipping and returns in the United States and Canada.


  • The mattress has a breathable design that draws heat away.
  • It is free of VOCs, so it does not produce indoor pollution.


  • The mattress is lightweight and slippery, according to reviews. It may feel that it is not secure.
  • It can take a long time for the company to process returns.
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Best certified organic: Avocado Green Mattress

Avocado Green Mattress against a blue background.
  • List price: from $1,399
  • Mattress type: hybrid
  • Firmness: medium-firm
  • Height: 11 in
  • Warranty: 25-year limited warranty

This certified organic hybrid mattress contains 3 in of latex foam, wool, and cotton. Its zoned support system targets pressure points and the lower back. Additionally, it features 1,414 pocketed support coils.

The organic latex and wool in the mattress come from farmers’ collectives and societies in which the company has a stake.

According to the company, the tempered steel coils help distribute weight more evenly, reduce motion transfer, promote better spinal alignment, and adjust to the body’s shape. Additionally, the mattress offers edge-to-edge support.

The company states that it needle tufts the mattresses by hand and that the product does not contain polyester, polyurethane foam, or toxic flame retardants.

Read our review of Avocado here.

The mattress has Global Organic Textile Standard (GOTS), Global Organic Latex Standard (GOLS), and Greenguard certifications to ensure that it is free from materials that are hazardous to human health.

Avocado offers a 1-year trial and free shipping and returns.


  • The mattress holds different certifications, such as GOTS, GOLS, and Greenguard. This means that the materials are not toxic to humans.
  • The materials are organic, which may suit people who prefer organic products.
  • It comes with side handles so people can move or adjust it easily.


  • An extra charge may apply for persons who want to add a pillowtop to the mattress.
  • The customer service team may not be very helpful.
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Best for a flippable mattress: Layla Memory Foam Mattress

Layla Memory Foam Mattress against a blue background.
  • List price: from $749
  • Mattress type: memory foam
  • Firmness: soft and firm
  • Height: 10.5 in
  • Warranty: lifetime warranty

Layla states that it has designed this mattress to promote cooler sleep. The mattress contains copper gel-infused memory foam, which reportedly helps it stay soft and cool while still providing support where a person needs it most.

Read our review of Layla here.

The company also states that copper is antimicrobial, which can help minimize odors.

People can choose which side of the mattress to sleep on. One side offers soft support, which may be more suitable for lighter people or side sleepers. The other side is firm, which may better suit heavier people.

Layla offers free shipping and returns and a 120-night trial.


  • The mattress contains gel-infused memory foam, which provides a cooling effect. This may be beneficial for hot sleepers.
  • It is flippable and provides two firmness levels on both sides. These depend on the individual’s sleeping position and weight.
  • It has antimicrobial properties so that it fights odor-causing bacteria.


  • The mattress has no eco-friendly materials.
  • The flippable firmness may not be suitable for everyone.
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Best for a cooler sleep: DreamCloud Premier Hybrid

DreamCloud Premier Hybrid against a blue background.
  • List price: from $1,169
  • Mattress type: hybrid
  • Firmness: medium-firm
  • Height: 14 in
  • Warranty: lifetime warranty

This mattress features seven layers, including a foam base layer, 8.5-in individually wrapped coils, a 2.5-in transition zone to help align the spine, and a 1-in layer of plush foam for comfort. The cashmere blend Euro-top layer is reportedly breathable and helps wick away heat.

DreamCloud states that it designed this mattress to disperse heat with plentiful airflow, reduce motion transfer and provide good edge support.

Read our review of DreamCloud here.

All the foam has CertiPUR-US certification. The mattress is compatible with many types of bed frames.

DreamCloud offers a 365-night trial and free shipping in the contiguous U.S. states.


  • It has a heat-wicking layer so that the body remains cool.
  • It provides edge support. This means that it does not sag when people sit at the edge.
  • People can use the mattress with most bed frames.


  • Some people added a mattress topper as the mattress was too firm and increased back pain.
  • The mattress height is very thick, making it difficult for older adults to get into bed.
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Best for eco-friendly materials: Birch Luxe Natural Mattress

Birch Luxe Natural Mattress against a blue background.
  • List price: from $1,998.80
  • Mattress type: hybrid
  • Firmness: medium-firm
  • Height: 11.5 in
  • Warranty: 25-year warranty

Birch states that it makes this mattress from responsibly sourced, eco-friendly, and nontoxic materials.

Learn where to purchase the best nontoxic mattresses here.

The mattress consists of a base layer of fire-retardant organic wool and rayon, over 1,000 steel coils, natural Talalay latex, organic cashmere, wool, and cotton.

The company states that the materials and layers provide a cooler sleep, zoned lumbar support, pressure point relief, and edge support.

Birch offers a 100-night sleep trial and free shipping and returns.


  • The mattress is suitable for persons looking for an eco-friendly option.
  • It supports all sleeping positions.
  • It is GOTS and Greenguard Gold certified, indicating it is free of harmful chemicals.


  • Birch Luxe is a medium-firm mattress. People cannot choose their preferred firmness level.
  • Direct exchanges are not possible and there is a $99 fee for removals when opting for a return.
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Best for edge support: Serta Perfect Sleeper Mattress

Serta Perfect Sleeper Mattress against a blue background.
  • List price: from $499
  • Mattress type: hybrid
  • Firmness: plush, medium, and extra firm
  • Height: 13 in
  • Warranty: 10-year limited warranty

This mattress has an extra deep foam rail around the edges to reduce roll-off and expand the sleep surface. Cooling features include a plant-derived cover that is cool to the touch and proprietary gel memory foam with geometric cutouts for extra airflow.

Read our review of Serta here.

A CertiPUR-US-certified contouring memory foam layer provides cradling support and pressure point relief. A later of individually wrapped coils provides motion isolation and relieves pressure points.

Serta offers free shipping and returns and a 120-day trial.


  • People can choose their preferred thickness and firmness level.
  • It supports the hips and lower back.
  • It contains individually wrapped coils which provide motion isolation. This means a person does not disturb their partner when moving or changing position.


  • Reviewers note that the coils may not be even, as most found that the mattress had a lump on one side.
  • It is very firm which can be uncomfortable for some.
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Best for couples: Helix Dusk Luxe

Helix Dusk Luxe against a blue background.
  • List price: from $1,373. 80
  • Mattress type: hybrid
  • Firmness: medium-firm
  • Height: 13.5 in
  • Warranty: 15-year warranty

Helix states this mattress is most suitable for couples with different firmness preferences or people who sleep on their side or back.

Read our review of Helix here.

It contains six layers and an ultra-breathable Tencel cover. The memory foam layers include dynamic foam for cushioning and cradling, high-density foam, and a transition layer of high-grade polyfoam. The mattress also contains more than 1,000 individually wrapped coils.

The coil layer has multiple zones to provide extra support to the lumbar region.

Helix offers free shipping and delivery and a 100-night sleep trial.


  • It has a medium feel and suits couples with different firmness preferences.
  • Customers can opt for a hypoallergenic cover which may suit those with allergies.


  • The mattress may have a strong chemical odor.
  • The company may take weeks to process returns.
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Best for adaptive support: Purple Mattress

Purple Mattress against a blue background.
  • List price: from $799
  • Mattress type: memory foam
  • Firmness: medium-firm
  • Height: 9.25 in
  • Warranty: 10-year warranty

One of the first “beds in a box,” the Purple Mattress consists of a SoftFlex knit cover, a 2-in Purple GelFlex Grid, a soft cushioning foam layer, and a firm supporting foam layer.

Read our review of Purple here.

The GelFlex Grid is breathable, promoting airflow and cooler sleep. It cradles pressure points, such as the hips and shoulders, and supports the back and legs, helping to promote spinal alignment.

According to the company, this mattress is durable and quickly adapts to a person’s body. It is also hypoallergenic.

Purple offers free shipping and returns and a 100-night trial.


  • The mattress suits individuals with allergies as it has hypoallergenic materials.
  • It does not disturb sleep; it immediately adapts to the body’s movements.


  • An additional charge applies when a person adds a frame to their order.
  • It may cause back pain.
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Best for kids: Helix Kids

helix kids
  • List price: from $748.80
  • Mattress type: hybrid
  • Firmness: soft and firm
  • Height: 8 in
  • Warranty: 10-year warranty

Helix offers this flippable mattress for children of different ages. One of the sides is firm and suits those aged 3-7 years, and the soft side suits those aged 8-12 years.

Read our review of Helix here.

It comes with other features, such as hypoallergenic materials, a stain and water-repellent design, and an odor-fighting microbe shield.

The mattress is also CertiPUR-US certified, indicating it is free of lead, phthalates, and foams.

In addition to that, the mattress features individually-wrapped coils that offer motion isolation and edge support. It also has flammability protection.

It comes with a 100-night sleep trial.


  • Depending on their child’s age, people can benefit from the mattress’s flippable design.
  • It is stain and water-repellent. This means that it does not get damaged if the child spills water.
  • It is hypoallergenic, so it is suitable for children with allergies.


  • Reviewers state that children who use this mattress may be prone to injuries. It is 8-in high, which can be difficult for a child to get onto the mattress.
  • Some people had to return the mattress as it had a strong odor that did not go away after a month.
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Best for all sleeping positions: Puffy Royal Mattress

Puffy royal mattress
  • List price: from $2,579
  • Mattress type: hybrid
  • Firmness: ultra-plush
  • Height: 14 in
  • Warranty: lifetime

Puffy’s Royal mattress contains seven layers that hold the CertiPUR-US certification. It has gel-infused and responsive foams that adapt to the body and help individuals sleep cool.

It comes in seven sizes and has a hybrid design.

Customers can benefit from motion isolation features that can benefit those who sleep together in different positions.

Puffy offers a 101-night trial and a lifetime warranty.

According to the company’s website, the American Chiropractic Association has endorsed the mattress which is compatible with all bases and frames.


  • The mattress suits any sleeping position.
  • People can use this mattress with any base or frame.
  • It is suitable for hot sleepers, as its gel-infused foam provides a cooling effect.


  • It is very expensive compared to other competitors.
  • Reviews are available on the company website but individuals are unable to filter them by their rating.
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Best for heavier people: Titan Plus Mattress

Titan Plus Mattress
  • List price: from $699
  • Mattress type: hybrid
  • Firmness: firm
  • Height: 13 in
  • Warranty: 10-year warranty

Titan stocks this mattress for heavier people. It is available in seven sizes and comes with a layer of gel memory foam that keeps the body cool while sleeping. It also features TitanFlex foam that contours to the body and offers pressure point relief.

A person can benefit from motion isolation and an optional GlacioTex cooling cover.

Titan offers a 120-night trial and a 10-year warranty.


  • The mattress supports up to 1,000 pounds (lb) weight.
  • It suits hot sleepers.
  • It is compatible with most platforms and box spring foundations.


  • The edges may not be very supportive, especially for older adults, as they may feel sliding down.
  • It may not provide enough back support, according to reviewers.
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The following table compares the mattresses in this article according to type, firmness, and more.

PriceMattress typeFirmnessHeightWarranty
Saatva$1,195memory foam• relaxed firm
• firm
12 inlifetime
Tuft & Needlefrom $745memory foamfirm9.5 in10 years
Nectarfrom $599memory foammedium-firm12 inforever
Casperfrom $895memory foammedium11 in10 years
Avocadofrom $1,399hybridmedium-firm11 in25 years
Laylafrom $749memory foamsoft and firm10.5 inlifetime
DreamCloudfrom $1,169hybridmedium-firm14 inlifetime
Birchfrom $1,998.80hybridmedium-firm11.5 in25 years
Sertafrom $499hybrid• plush
• medium
• extra firm
13 in10 years
Helixfrom $1,373. 80hybridmedium-firm13.5 in15 years
Purplefrom $799memory foammedium-firm9.25 in10 years
Helix Kidsfrom $748.80hybridsoft and firm8 in10 years
Puffyfrom $2,579hybridultra-plush14 inlifetime
Titanfrom $699hybridfirm13 in10 years

Read our guide to comparing mattresses here.

People may wish to consider the following before purchasing a mattress online:

  • Materials: Hybrid mattresses may be more suitable for people who sleep hot, as the coils promote extra airflow. Memory foam or latex products may offer more pressure point relief.
  • Allergies: People with a latex allergy should avoid products containing this material.
  • Certifications: People may wish to look for certifications such as CertiPUR-US and Greenguard to ensure that the materials are not hazardous to human health.
  • Warranty: People may wish to choose a mattress with a generous warranty that covers the expected life span of the product.
  • Sleep trials: Being able to test out the mattress in their home gives people a chance to see whether it is suitable for their needs.
  • Price: Mattresses can range from several hundred dollars to more than $2,000. People should ensure that the mattress they choose suits their budget.

Medical News Today chooses mattresses that meet the following criteria:

  • Certifications: MNT will choose products that have CertiPUR-US or other certifications. This means the products are low in pollutants and free from heavy metals and volatile organic compounds.
  • Size: MNT chooses products that are available in various sizes.
  • Materials and fill: MNT selects products made from different materials and fills, such as memory foam and latex, to suit a range of sleep styles and lifestyles.
  • Budget: MNT features products to suit a wide range of budgets.
  • Firmness: MNT selects mattresses that are available in a range of firmness options to suit most people’s sleeping styles.
  • Sleep trials: MNT chooses companies that offer a sleep trial.
  • Shipping: Where possible, MNT will include shipping information, such as where the company delivers to and whether shipping is free.
  • Warranties and return policies: MNT will include products that carry warranties and clear returns policies.
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A full-size mattress is a mid-size mattress that is larger than a twin size and smaller than a queen size. This type of mattress is typically 54 in wide and 75 in long.

Full-size mattresses are a good option for people who sleep alone but prefer extra space to stretch out while sleeping. They may also be a good option for couples who do not need as much sleeping space or who have limited floor space.

However, tall people and couples who prefer to stretch out while sleeping may prefer a larger mattress.

The following table lists the dimensions of common mattress sizes:

Twin38 x 75 in
Twin XL38 x 80 in
Full54 x 75 in
Queen60 x 80 in
King76 x 80 in
Split king76 x 80 in
Cal king72 x 84 in

Here we answer some common questions about these mattresses.

Is a full mattress the same as a queen?

No, a full mattress is not the same as a queen mattress.

At 54 in wide and 75 in long, a full mattress is somewhat narrower and shorter than a queen mattress, which is 60 in wide and 80 in long.

How wide is a full-size mattress?

A full-size mattress is 54 in wide.

Can I put a full-size mattress on a bunk bed?

No. Bunk beds typically hold twin-size mattresses, which measure 38 x 75 in. Full mattresses are 54 x 75 in and will be too wide to fit on the bunk bed frame.

What is the best mattress for a 300-lb person?

People may check the amount of weight a mattress supports before purchasing. Firmness levels may also suit different weights.

For example, the Titan Plus mattress may be suitable for a person weighing 300 lb, as the website states it supports up to 1,000 lb.

Is a full-size mattress big enough for two adults?

Check if the company provides dimensions for each size.

A full-size mattress may suit individuals who sleep alone but need more space. It may also be a good purchase for couples with limited floor space.

Full-size mattresses are a good option for people with a full-size bed frame who prefer more space. People with limited floor space may also benefit from this size mattress compared to the larger Queen and King sizes, while also allowing space for a couple to share the bed.

Most, if not all, companies offer this size of mattress. People can choose from several types of mattresses, such as hybrid and foam, as well as different firmness options, heights, and warranty terms.