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Some people prefer to sleep on a soft mattress. Choosing the softest mattress may provide comfort that supports good quality sleep. However, soft mattresses may not offer enough spinal support for back or stomach sleepers.

People may like soft mattresses because of the comfort they provide. However, soft mattresses may also help address common sleep issues, such as temperature regulation, pressure point relief, and motion isolation.

This article looks at the nine best soft mattresses available to buy online, discusses sleep health, and covers some frequently asked questions.

A quick look at the best soft mattresses

MNT chooses mattresses, sheets, pillows, and other bedding that meet the following criteria:

  • Certifications: MNT will choose products that have CertiPUR-US or other certifications. This means that 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 with different materials and fills, such as memory foam and latex, to suit a range of sleep 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.

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 spinal alignment: Saatva Classic

Price: $912–2,396

Sizes: Twin, twin XL, full, queen, king, spit king, Cal king, and split Cal king

This innerspring mattress features active wire support that runs down the center of the mattress. This design may help with spinal alignment.

Saatva explains that the Euro pillow top cushions and contours to a person’s body shape. This may support the shoulders, back, and hips, and relieve pressure at these points.

Saatva’s coils allow airflow through the mattress, which may help a person regulate their sleeping temperature. This model also has strong edge support to make it easy for a person to get in and out of bed.

This mattress is available in two heights and three firmness options; plush soft, luxury firm, and firm. It can fit different bed setups, including adjustable bases. However, not all heights are compatible with all bases, so buyers should be aware before purchasing.

On TrustPilot, the company has over 1000 reviews and an overall rating of 4.5 out of 5.

On Better Business Bureau (BBB), the brand has accreditation, has an overall customer review rating of 4.77 out of 5, and rates it A+.

Positive reviews mention that Saatva provides good customer service and that its mattresses are comfortable.

Negative reviews mention problems with returns, warranty, and sagging in the middle of Saatva mattresses.

Saatva offers a 365-night home trial, free white glove delivery, and a lifetime warranty. It also provides free shipping and returns for the first 45 days after delivery. After that, customers have to pay a $99 restocking fee.

The Saatva Classic can be worth considering for people with spinal issues, where alignment in bed may help relieve pain.

Learn more about Saatva mattresses here.

Best for increased airflow: Casper Original

Price: $895–1,695

Sizes: Twin, twin XL, full, queen, king, and Cal king

The Casper Original mattress has three zones of targeted support and a perforated, breathable foam layer to increase airflow through the mattress.

This mattress uses the brand’s trademark Zoned Support. There is a soft foam at the top of the mattress to relieve pressure on a person’s shoulders and a firmer foam beneath the hips, waist, and lower back to help keep a person’s spine aligned.

This mattress is CertiPUR-US certified and Casper designs it to adapt to different sleeping positions and body types.

The company has a rating of 4.1 out of 5 on TrustPilot based on over 6,000 reviews. Positive reviews on this site mention quick delivery and good customer service. However, negative reviews state that the mattress is hot to sleep on, becomes too soft over time, and does not offer enough support, which some users wrote led to back and hip pain.

On BBB, the brand has a 1.2 out of 5, A+ rating. There are under 50 reviews for Casper on BBB and over 170 complaints in the past three years. Positive reviews write about good quality pillows and mattress products that are comfortable to use. Customer complaints focus on customer support and billing issues.

Buyers should be aware that people are this mattress as medium, and it may not be as soft or firm as some would like it.

A person can trial the Casper Original mattress for 100 nights. The company offers free shipping and returns, though people in Alaska or Hawaii have to pay for it.

The airflow and the mattress’s downside of becoming too soft over time make this mattress a better fit for very lightweight individuals.

Learn more about Casper mattresses here.

Best for reducing sleep temperature: The WinkBed

Price: $1,149–2,199

Sizes: Twin, twin XL, full, queen, king, and Cal king

Winkbed offers a soft version of its original mattress that uses hybrid technology. The coil layers help increase airflow, and the gel in the memory foam helps reduce sleeping temperatures. The mattress is also available in luxury firm, firmer, and plus options.

According to the company, Winkbed mattresses are CertiPUR-US certified and do not contain ozone depleters, PBDE flame retardants, mercury, lead, formaldehyde, or prohibited phthalates.

The company offers a 120-night sleep trial. Another major positive is the free returns and a lifetime warranty, with an “Any Reason” option that allows a person to exchange the mattress after the sleep trial ends for a new one at 50% of the price. It also provides free shipping and returns.

The brand has a 4.2 out of 5 rating on TrustPilot, with most people saying they had a great experience with the purchase and found their mattresses comfortable and supportive. However, there are fewer reviews for this brand, with under 100 reviews at the time of publishing.

Negative reviews on TrustPilot mention that some mattress models had an unpleasant smell and were too firm.

The WinkBed’s promise to sleep cooler makes it ideal for hot sleepers and those living in hot climates.

Learn more about WinkBed mattresses here.

Best flip-to-change firmness: Layla Memory Foam

Price: $749–1,249

Sizes: Twin, twin XL, full, queen, king, and Cal king

This CertiPUR-US certified mattress is flippable with a soft and firm side. A person may find this feature useful if they find their needs or preferences change over time.

The soft side features 3 inches (in) of copper-gel memory foam. On top, there is a cooling cover to help regulate a person’s temperature while they sleep. The company writes that the soft side is suitable for side sleepers as it relieves pressure on common pain points such as the hips and shoulders.

The manufacturer states that the copper inside this mattress has antimicrobial qualities that form a barrier to fight odor-causing bacteria, allowing the mattress to remain fresh for longer.

On BBB, the company has an A+ accreditation rating and a 4.33 customer rating. Positive reviews mention that the company’s customer service representatives are helpful.

One complaint mentions that the memory foam mattress started compressing significantly in the middle after a year, causing the user to develop back and hip pain.

The company provides free shipping, except for those living in Canada, Hawaii, or Alaska. A person can trial the Layla Memory Foam mattress for 120 nights. During that time, buyers can return the mattress for a full refund, though a fee may apply after that time.

On the downside, buyers should be aware that buyers cannot avail themselves of the manufacturer’s warranty period if they purchase from a third-party instead of directly from Layla’s website or stores.

The Layla Memory Foam may be ideal for people who have yet to figure out the best firmness for them or for guests rooms, where it is ideal to have a mattress with two firmness options.

Learn more about Layla mattresses here.

Best for pressure relief: Amerisleep AS5

Price: $1,749–3,298

Sizes: Twin, twin XL, full, queen, king, Cal king, and split king

This soft mattress consists of four layers of foam and is 14 in tall in total. The top comfort layer comprises 3-in of memory foam that, according to the company, allows a person to sink into the mattress and relieve pressure on pain points.

The AS5 is an all-foam mattress that uses Amerisleep’s trademark plant-based Bio-Pur materials, which may help regulate a person’s temperature. The manufacturer states that the product’s open-cell design allows more air to escape the mattress than traditional foam.

The Bio-Pur materials are CertiPUR-US certified, meaning they do not contain ozone depleters or harmful chemicals. The company also uses renewable oils from plants in its mattresses.

The brand has a rating of 3 out of 5 on TrustPilot. There are only two reviews on TrustPilot, both of which are negative. One customer describes that their mattress developed significant softening that the company’s 20-year warranty does not cover. Another mentions problems with delivery.

On BBB, the brand has not accreditation and has a 1 out of 5 rating, from under 10 reviews. Most complaints and negative reviews also concern the customer service and brand policies.

A person can trial the Amerisleep AS5 mattress for 100 nights with free shipping and returns, as well as a 20-year warranty. The sinking pressure point relief makes it an ideal consideration for side sleepers and those who move a lot during the night.

Learn more about Amerisleep mattresses here.

Best for preventing humidity: Puffy Lux

Price: $1,749–2,449

Sizes: Twin, twin XL, full, queen, king, and Cal king

This medium-plush all-foam mattress consists of six layers. The manufacturer states that the Climate Comfort layer is resistant to humidity and wicks moisture away from a person’s body. A gel-infused foam layer also helps to make the mattress breathable.

This makes it a good option for people who tend to sleep warm.

The mattress features a stain-resistant cover and is OEKO-TEX Standard 100 certified, meaning it does not contain any harmful chemicals or volatile organic compounds (VOCs).

On TrustPilot, the company has a 2.2 rating based on 43 reviews. Positive reviews state that Puffy mattresses are comfortable and the company’s customer service is good.

Negative reviews raise concerns about the long-term quality of the mattresses. The brand’s website does not allow viewers to sort or search reviews, which can make researching the product more difficult for consumers.

Puffy offers customers free shipping and returns as well as a 101-night sleep trial period and a lifetime warranty.

Best for motion isolation: Leesa Original

Price: $849–1,399

Sizes: Twin, twin XL, full, queen, king, and Cal king

This CertiPUR-US-certified mattress features a memory foam comfort layer. The manufacturer states that the memory foam contours to a person’s body to prevent and relieve back, hip, and shoulder pressure.

There is also a high-density polyfoam base to offer support and prevent sinking. It may also help couples avoid sleep disruptions with motion isolation.

The brand says this mattress has a relaxed firmness.

Reviews published on TrustPilot are variable, with a 2.5 overall rating. Some positive reviews mention that Leesa mattresses are comfortable and help to improve back pain. However, over 70% of the 24 reviews on TrustPilot are negative, with some users raising complaints about the delivery process, that the mattresses feel too firm or sag over time.

Leesa offers a 100-night sleep trial and a 10-year warranty with each mattress. The company also provides free shipping to all 50 states and conditional returns. For example, each household can only avail of the return policy once, regardless of how many mattresses it buys from Leesa.

This makes it a big downside for anyone who has already bought a Leesa mattress before or people who are not sure about the firmness they need from a mattress.

On the upside, some buyers’ common opinion that this mattress provides good motion isolation makes it a viable option for couples.

Learn more about Leesa mattresses here.

Best for softness: TempurPedic Tempur-Adapt

Price: $2,849–7,298

Sizes: Twin, twin long, full, queen, king, split king, Cal king, and split Cal king

According to TempurPedic, this mattress features the most advanced conforming support pressure relief layer the company offers. The Tempur-Adapt also offers motion cancellation, a washable cover, and 20% to 40% more Tempur material than the original model, according to the buyer’s preference.

Consumers can choose between the ProAdapt, featuring a 12-in profile height, and the LuxeAapt, with a 13-in height.

A person can choose between soft, medium, medium hybrid, and firm options. The soft option includes a 9-centimeter (cm) Comfort Layer, which Tempur describes as its softest material. Beneath this layer is a 3 cm Tempur APR+ layer, which is proprietary material for relieving pressure.

The company writes that this mattress is compatible with power bases, flat foundations, and platform beds.

This mattress is not suitable for smaller budgets. On the upside, the softer option is cheaper than the firmer ones. Also, a person can choose from cheaper models that also offer pressure relief layers.

Unfortunately, there is also a significant discrepancy between the reviews on the website and those on TrustPilot or BBB. The latter give very low ratings, and on BBB, the company had 611 complaints in the past 3 years despite the A+ rating. These are about customer service, sagging mattresses, and long delivery delays.

Tempur offers a 90-night trial and 10-year warranty. A person may also be able to get free white glove delivery with this mattress model, which includes the removal of old mattresses and the disposal of packaging. The company offers free shipping, but refunds for returns exclude shipping costs.

The customization options during the purchasing stage makes this a good consideration for people who want a soft mattress and have the budget for it.

Learn more about TempurPedic mattresses here.

Best for durability: Nolah Signature

Price: $1,099–2,398

Sizes: Twin, twin XL, full, king, Cal king, and split king

This plush Nolah mattress features the company’s proprietary AirFoam material that relieves pressure and helps to keep sleepers cool overnight. The company makes the base from durable, high-density foam.

This 12-in mattress has four layers, including edge support, and the company writes that it resists sagging with use. The company also claims that the brand’s own Nolah AirFoam is 300% more durable than memory foam.

It also describes the mattress as soft and suitable for side and back sleepers.

Nolah has no accreditation on BBB, and has a total of three reviews across this site and TrustPilot. Additionally, a person cannot search or filter reviews on the Nolah website, and it only shows 5-star reviews.

The Nolah Signature comes with free shipping, a lifetime warranty, and a 120-night sleep trial. Returns are only possible after 30 days and within the 120-night trial, subject to a $99 processing fee.

Its construction, durability, and warranty terms makes this a potential option for those looking for peace of mind when purchasing a mattress.

Learn more about Nolah mattresses here.

The table below compares each of the above mattresses.

PriceSize rangeFirmnessTrial periodWarranty
Saatva Classic$912–2,396twin to split California kingplush soft, luxury firm, and firm365 nightslifetime
Casper Original$895–1,695twin to California kingmedium100 nights10 years
The WinkBed$1,149–2,199 twin to California kingsofter, luxury firm, firmer, and plus120 nightslifetime
Layla Memory Foam$749–1,249twin to California kingsoft and firm flippable mattress120 nightslifetime
Amerisleep AS5$1,749–3,298twin to split kingsoft100 nights20 years
Puffy Lux$1,749–2,449twin to California kingmedium-plush101 nightslifetime
Leesa Original$849–1,399 twin to California kingrelaxed100 nights10 years
TempurPedic Tempur-Adapt$2,849–7,298twin to split California kingsoft, medium, medium hybrid, and firm90 nights10 years
Nolah Signature$1,099–2,398twin to split California kingplush120 nightslifetime

A person looking for a soft mattress may consider some of the following points:

  • Size: A person should consider whether their chosen mattress will fit their bedframe, whether it will be high or low enough to get in and out of comfortably, and whether it will be big enough to accommodate everyone who will be sleeping in it.
  • Targeted support: Some people may prefer mattresses that have different levels of support in different areas of the mattress, for instance, more support in the middle of the mattress to keep the lower back aligned. Other people may prefer softer support in these areas to relieve pressure on the hips. A person should consider any back, hip, or shoulder pain they may have when choosing a mattress.
  • Cost: Some mattresses can be expensive. A person should consider the features they need in a mattress and how that will suit their budget.
  • Motion isolation: Some may find motion isolation important if they typically sleep with another person in the bed.
  • Sleep temperature: Making sure the room and bed is a comfortable temperature for sleep is important when a person is working to improve their sleep quality or duration. Many mattresses contain cooling foam or topper materials to draw heat away from a person’s body and increase airflow through the mattress. If a person feels that foam mattresses will be too hot to sleep on, they may wish to consider other types of mattresses, such as innerspring mattresses, or those filled with other materials, such as wool.

Few studies have investigated the long-term effects of different types of mattresses. Partly, this is due to variations in mattress structure, materials, and proprietary technology, which create difficulties for scientists to draw accurate comparisons across products.

A 2021 systematic review of 39 studies investigated which type of mattress was best at promoting comfort, sleep quality, and spinal alignment. The researchers classified the different mattress types according to firmness, rating them as “soft”, “medium-firm”, or “extra-firm”. They concluded that a medium-firm mattress can help to alleviate low back pain and improve sleep quality in people with non-specific low back pain.

However, the type of mattress a person chooses will vary based on personal preference. Some people may prefer a soft, sinkable mattress that contours their body, helping to alleviate joint and muscle pain. A soft mattress may also benefit light sleepers who find it difficult to fall asleep on a firmer mattress.

Ideally, people should choose a mattress that comes with a free trial period, so they can see how the mattress feels before committing to it.

A person can research the best type of mattress for their needs by reading reviews online, comparing products, and testing mattresses out in stores or by using the sleep trials many companies offer.

However, those with pain or other health conditions may wish to discuss their needs with a doctor before committing to a purchase to get advice on what kind of mattress may be best for them.

If a person is woryring about their sleep quality, or they have developed back pain, hip pain, or shoulder pain, they should talk to a doctor for advice.

Below are some of the most frequently asked questions about soft mattresses.

What are the different kinds of soft mattresses?

Soft mattresses can contain a variety of materials, including:

Mattress brands will typically include three or more layers in their soft mattress models. However, each brand of mattress will include different materials in different thicknesses. As such, a person may wish to trial their chosen mattress at home or try it out in a store to see if it suits their needs.

A person with a latex allergy should avoid soft latex mattresses.

Who might benefit from a soft mattress?

Soft mattresses may best suit those with a lower body mass index (BMI). A lighter person will place less pressure on a mattress, and the reduced pressure may prove more comfortable.

People with a higher BMI may benefit from a firmer mattress that keeps the spine in a neutral alignment while preventing them from sinking into the mattress.

Learn about the best mattresses for heavy people here.

Can a soft mattress help reduce pain?

An older 2012 study found that people with arthritis are more likely to experience disturbed sleep and insomnia. Anecdotally, a soft mattress may help to alleviate pressure on the joints, helping to relieve arthritis pain. However, the mattress should provide enough support to keep the spine in a neutral alignment.

Is a soft mattress good for a particular sleep position?

Some mattress brands specify that their soft mattresses are best for side sleepers, as they provide low resistance and gentle support.

When purchasing a new mattress, a person should look for products offering a trial period, or should try the mattress out in-store to see whether it suits their preferred sleep position.

Learn more about the best sleep positions for back pain.

Can a soft bed cause sciatica?

There is no research to suggest that a soft mattress can cause sciatica. Likewise, research does not clearly indicate whether people with sciatica or nerve pain should use a soft, medium, or firm mattress.

However, sleeping on a mattress that does not offer adequate support or pressure relief could worsen sciatica symptoms for some people.

A 2015 systematic review reports that medium-firm mattresses and models with custom inflation can provide better sleep comfort, quality, and spinal alignment. Keeping the spine aligned is important for people with sciatica, as it helps to prevent the sciatic nerve from becoming compressed, irritated, and inflamed.

Learn more about the best mattresses for sciatica.

Are soft mattresses better than firm?

Soft mattresses are not necessarily better than firm. A 2015 article reports that a medium-firm mattress can provide better comfort and sleep quality. However, some people may find a medium-firm mattress too firm.

Are soft mattresses good for older adults?

Older adults may be more susceptible to joint pain, so may need a mattress that helps to alleviate this symptom. A soft mattress may provide more comfort, but a firmer mattress may provide better support.

A 2021 systematic review investigated the effect of different mattress types on back pain and sleep quality. According to the review, a medium-firm mattress is the most comfortable mattress option for people with low back pain.

Similarly, a 2015 study found that sleeping on a medium firm mattress led to a reduction in musculoskeletal pain, and an improvement in sleep quality.

Learn about the best mattresses for seniors here.

Sleep is important for maintaining a person’s overall health and well-being. Having a comfortable mattress that provides a good balance of comfort and support can help a person improve their sleep quality and duration.

When choosing the best soft mattress, a person should consider their individual preferences and any health considerations they have to take into account, such as back pain. Soft mattresses may not be suitable for people who sleep on their back or stomach. Additionally, heavier people may not find soft mattresses comfortable. However, soft mattresses may be suitable for people who need relief for pressure points.

Many mattress brands offer sleep trials of 100 nights or more so a person can test their chosen mattress and exchange it if necessary.

If a person has concerns about their sleep or experiences back pain that will not go away, they should consult a healthcare professional for advice.