Meet Our Testing Team
- People who weigh 230 pounds or less. After testing the mattresses, we found the AS3 and AS3 Hybrid are best suited to sleepers in the lightweight and average weight groups due to their mid-level firmnesses and close body-conforming.
- Couples. Both versions of the AS3 isolate motion very well, which can reduce sleep disruptions for those who awaken easily due to their partner’s movements. The AS3 Hybrid is also reasonably quiet for a hybrid, while the all-foam AS3 is virtually silent when bearing weight.
- People with sharp pressure or pain around the spine. The mattress contours closely to cushion the spine, improve alignment for side sleepers, and alleviate discomfort in sensitive areas of the body.
Not Recommended for...
- Sleepers seeking an exceptionally responsive mattress. The all-foam AS3 conforms closely to sleepers to form a pressure-relieving cradle for their body, while the AS3 Hybrid is a bit more responsive, creating a feeling in between sleeping “on” and sleeping “in” the mattress. Neither model offers the signature springiness of a latex or hybrid mattress.
- Hot sleepers. The all-foam AS3 absorbs a fair amount of body heat and sleeps somewhat warm as a result. The AS3 Hybrid is a bit cooler thanks to more airflow through the coil layer, but its temperature neutrality is below-average for a hybrid model.
Our testing crew evaluated the all-foam AS3 for motion isolation, pressure relief, and other performance factors. To see their findings, check out the video below.
Our testing team conducted an extensive evaluation of the AS3 and AS3 Hybrid mattresses. This review and rating process consists of three parts: in-house evaluation, external sleep testing, and data collection of verified owner experiences. To learn more about our review process, read our methodology here.
Our performance criteria and ratings for the bed are listed in the table below.
As you can see, the all-foam AS3 and AS3 hybrid earned distinct ratings in each performance category. For a detailed analysis of each rating, check out our full breakdown below.
Sleep Position Ratings
As part of our ratings process, we evaluated the AS3 and AS3 Hybrid across different body types and preferred sleep positions. In addition to physical testing, we surveyed our sleep expert team and analyzed reviews from verified mattress owners and customers. Our findings are listed in the table below.
- AS3 Hybrid
|Sleep Position||Less than 130 LBS||130 LBS - 230 LBS||Greater than 230 LBS|
|Sleep Position||Less than 130 LBS||130 LBS - 230 LBS||Greater than 230 LBS|
How Are the AS3 and AS3 Hybrid Constructed?
The all-foam AS3 and AS3 Hybrid both have the same cover, which is made from a blend of cotton and polyester. The material has a very soft feel and is also quite breathable, helping the surface remain cool.
The AS3 and AS3 hybrid each have a 3-inch comfort layer consisting Bio-Pur foam, Amerisleep’s proprietary open-cell memory foam derived from a blend of polyurethane foam and plant-based material. The material has a medium feel, and sleepers experience noticeable body-conforming.
As an open-cell foam with a mid-level density (4 PCF), the Bio-Pur is also designed to retain less body heat and sleep cooler. However, overall temperature neutrality varies between the two AS3 models (see the ratings breakdown for more details).
Both AS3 models also share the same 2-inch transitional layer, which is made of 1.65 PCF high-density polyfoam. This material is denser and firmer than the memory foam found in the comfort layer, and the layer creates a buffer that prevents sleepers from sinking too deeply into the mattress.
The all-foam AS3’s support core is constructed from 7 inches of 1.8 PCF high-density polyfoam. The foam, which is exceptionally dense and firm, stabilizes the entire mattress and prevents excessive sagging. However, it does not withstand compression very well along the edges (see our breakdown for edge support below).
The AS3 Hybrid’s support core features pocketed coils encased in high-density foam. These coils provide excellent stability to keep sleepers on an even plane, and also support the edges better than the all-foam AS3’s polyfoam base. The coils are divided into three zones, with lower-gauge (thicker) coils supporting the lower back and hips while higher-gauge (thinner) coils cradle the head, neck, shoulders, and legs.
Both AS3 models measure 12 inches thick, making them high-profile models. Thanks to their above-average heights, the mattresses provide space for a thick comfort layer without sacrificing support from the base components. The mattress provides close body-conforming and pressure relief, but also maintains an even surface for sleepers.
|Amerisleep Model||Firmness Options||Thickness||Support Core Components||Comfort Layer Components||Cover Components|
|AS3||Medium (5.5)||12″||7″ 1.8 PCF HD Polyfoam||3″ 4 PCF Memory Foam
2″ 1.65 PCF Polyfoam
|Cotton and polyester blend|
|AS3 Hybrid||Medium (5.5)||12″||7″ Zoned Pocketed Coils||3″ 4 PCF Memory Foam
2″ 1.65 PCF Polyfoam
|Cotton and polyester blend|
What Are the Firmness and Feel Like?
The all-foam AS3 has a medium feel and features a thick memory foam comfort layer. The surface responds slowly to sleepers, and conforms closely to create a pressure-relieving cradle for their bodies. The mattress is best suited to people who prefer sleeping “in” – as opposed to sleeping “on” – their mattress.
The AS3 Hybrid also has a medium feel and a memory foam comfort layer. However, the pocketed coils in its base layer make the mattress feel more supportive and responsive than the all-foam AS3. Sleepers experience decent body-conforming but do not sink as deeply, resulting in a combined feeling of sleeping “on” and sleeping “in” the mattress.
Next, let’s take a closer look at our performance ratings for the AS3 and AS3 Hybrid mattresses. Each rating is based on findings from our internal and external testing teams, along with experiences from verified Amerisleep owners.
After testing the all-foam AS3 against the average mattress lifespan of six to eight years, we estimate this model will perform for about seven to seven and a half years before a replacement is needed. This expected lifespan is longer-than-average compared to other memory foam beds, and can be attributed to the high-quality foam used in the comfort, transitional, and support layers. The foam will likely begin to deteriorate as the mattress nears the end of its lifespan, but most owner experiences indicate the mattress is not as susceptible to sagging and body impressions as other all-foam models.
The AS3 Hybrid was introduced in 2019. We have not had enough time to evaluate this model against the average mattress lifespan, so our durability rating is based on other factors, such as the bed’s quality of materials and construction and Amerisleep’s overall reputation. We estimate the AS3 Hybrid will also perform for about seven to seven and a half years, which is a fairly long lifespan for a hybrid. Like the all-foam AS3, the AS3 Hybrid is constructed with high quality foams, and the mattress also features a sturdy coil system to reinforce the surface against early wear and tear.
To help protect the AS3 and AS3 Hybrid against deep sagging and body impressions, we recommend rotating these mattresses head-to-foot every three to six months.
To evaluate the all-foam AS3 for motion isolation, we asked two sleep testers to lie side-by-side on both mattresses. One tester rolled around while the other felt for motion transferring across the surface. During this test, the AS3 demonstrated strong motion isolation. The comfort foam absorbed movement well, and both testers noticed very little transfer.
Because the AS3 Hybrid is relatively new, we have not tested this model for motion isolation or other performance categories. Our assessments are based on the bed’s materials and our evaluations of mattresses with similar materials. We expect the AS3 Hybrid to provide very good motion isolation compared to other hybrid models. Though the mattress is a bit more responsive than the all-foam AS3, its comfort and transitional layers should reduce most transfer for sleepers.
Our testers noticed some off-gassing odor when unboxing the all-foam AS3. The smells had largely dissipated when they re-evaluated the mattress a few days later. The foam may continue to emit odor for longer periods, but very few owners report bothersome, long-term smells.
Although we have not evaluated the AS3 Hybrid for off-gassing, persistent odor after the initial unboxing will probably not be an issue with this mattress. Most hybrids promote strong airflow due to their open coil systems, and this helps clear out unwanted smells rather quickly.
When we evaluated the all-foam AS3 for pressure relief, our testers took turns lying on a sensory pad that monitors pressure build-up in sensitive areas of the body, such as the shoulders and hips. The testers also shifted positions to see if pressure increased or decreased when lying on their sides, back, or stomach.
The all-foam AS3 provided very good pressure relief for our testers, particularly those who weigh 230 pounds or less. The memory foam cushions the body to align the spine and reduce pressure for side sleepers, while the high-density transitional and support layers prevent back and stomach sleepers from sagging too much and experiencing added discomfort.
The AS3 Hybrid is constructed with the same comfort layer as the all-foam AS3, and we believe this mattress will also alleviate pressure very well.
The all-foam AS3 absorbs a fair amount of body heat from sleepers, and this may cause the bed to sleep excessively warm for some. This is a common issue for memory foam mattresses with soft to medium feels. Sleepers sink somewhat deeply into the mattress, which traps body heat and reduces surface airflow.
The AS3 Hybrid likely sleeps cooler due to its hybrid construction. Coil systems circulate air better than solid foam support cores, and this helps the mattress maintain a comfortable temperature. That said, the AS3 Hybrid’s memory foam may still trap heat and sleep hot, particularly for heavier people who sink into the mattress more than lighter individuals.
To evaluate the all-foam AS3 for edge support, our testers sat along the perimeter of the mattress as an owner might do when getting in and out of bed. The testers experienced significant sinkage during this test. They also experienced feelings of “roll-off” when lying near the edges.
The all-foam AS3’s fair edge support is largely due to the transitional and support foam. Even high-density foams cannot withstand compression as well as latex or coils, and over time the mattress may sag around the perimeter.
We expect the AS3 Hybrid to perform better in this category, as coils typically provide the best edge support. The high-density foam encasement around the coils offers additional reinforcement, as well.
The all-foam AS3 was virtually silent during all of our assessments, including tests that involved people moving around and changing sleep positions on the mattress. This is typical for all-foam beds. Although we have not tested the AS3 Hybrid, pocketed coils are reasonably quiet and we expect this mattress to have fairly low noise potential – though owners may notice the coils begin to squeak and creak a bit as the bed nears the end of its lifespan.
The all-foam AS3 conforms closely to the body, and also lacks strong edge support. As a result, the mattress may be somewhat problematic during sex. Couples may sink too deeply, which hinders movement and makes changing positions somewhat difficult, while the weak edges prevent them from utilizing the entire surface of the mattress. However, the mattress provides decent traction for sex due to its deep conforming.
The AS3 Hybrid should be better for sex due to its coil system, which makes the surface fairly responsive and springy. Couples won’t sink as deeply, ensuring better freedom of movement, but the foam still offers good traction.
The ideal firmness and thickness for a mattress largely depend on a sleeper’s body weight, shape, and preferred sleep position. In order to better inform our readers and avoid subjectivity in our review, we evaluated the bed with sleep testers of varying body types and position preferences.
Lightweight Sleepers – Less than 130 lbs.
Our lightweight testers found the all-foam AS3 very comfortable. Side sleepers in this weight group noted ample cushioning around the shoulders and hips for even spinal alignment and more pressure relief. Back and stomach sleepers also liked the mattress due to its balance of body-conforming and even support.
Although our testers have not evaluated the AS3 Hybrid, we presume this mattress will provide the same levels of comfort and support for sleepers under 130 pounds. The memory foam offers the same level of padding for side sleepers, while the pocketed coils should maintain an even plane for back and stomach sleepers.
Average Weight Sleepers – 130 to 230 lbs.
Our average weight sleep testers also liked the all-foam AS3, though their findings somewhat varied by sleep position. Side sleepers weighing 130 to 230 pounds awarded the highest ratings. These testers noted comfortable cushioning, even spinal alignment, and good pressure relief. For back and stomach sleepers, the mattress was fairly comfortable but they experienced a bit of sagging around the lower back and hips – a common issue for average weight people who sleep on softer mattresses.
We expect the AS3 Hybrid to perform somewhat better with average weight back sleepers. The coil system offers more reinforcement than high-density foam, and this should lead to less sagging. However, stomach sleepers may still notice some sagging. People who use this position tend to sink the most because they carry a fair amount of weight in their stomach, and sleeping face-down can pull them further into the mattress. Firmer hybrids and innersprings typically provide more support for stomach sleepers in the average and heavyweight groups.
Heavyweight Sleepers – More than 230 lbs.
Our heavyweight testers did not feel as comfortable on the all-foam AS3. Excessive sagging around the hips was the most commonly reported issue. Although side sleepers still experienced some pressure relief and gave the mattress a positive overall rating, back and stomach sleepers found the sagging affected how supportive the mattress felt.
The AS3 Hybrid will probably perform slightly better for heavyweight individuals, particularly back sleepers, due to its stronger support system. However, we expect some will simply find the mattress too soft. Most sleepers who weigh more than 230 pounds prefer medium-firm to firm mattresses because they sag the least.
Pricing and Discounts
- Twin $1,149 (AS3) $1,549 (AS3 Hybrid)
- Twin XL $1,199 (AS3) $1,599 (AS3 Hybrid)
- Full $1,349 (AS3) $1,799 (AS3 Hybrid)
- Queen $1,499 (AS3) $1,999 (AS3 Hybrid)
- King $1,899 (AS3) $2,424 (AS3 Hybrid)
- Cal King $1,899 (AS3) $2,424 (AS3 Hybrid)
How Do the AS3 and AS3 Hybrid Compare to Other Beds?
We encourage all mattress shoppers to compare different brands and models in order to find the most suitable option. In this next section, we’ll see how the AS3 and AS3 Hybrid stack up against some similarly constructed models from other mattress brands.
AS3 & AS3 Hybrid vs. Casper & Casper Hybrid
The Casper Mattress is a mixed-foam model constructed with polyfoam and memory foam comfort layers. The polyfoam gives the mattress more responsiveness, so it won’t hug the body as closely as the all-foam AS3 but sleepers still experience a fair amount of conforming. The Casper Mattress and all-foam AS3 have earned similar ratings in other performance categories.
Both beds offer excellent pressure relief and isolate motion very well, but they also lack strong edge support and tend to sink along the perimeter.
The Casper Hybrid also has comfort layers of polyfoam and memory foam. Like the AS3 Hybrid, the Casper Hybrid maintains even support while conforming to the body, creating a balance of sleeping “on” and sleeping “in” the mattress.
Both hybrids also provide very good temperature neutrality thanks to strong airflow through their coil layers. However, the Casper Hybrid’s edge support is fair at best, resulting in more sinkage than the average hybrid. We expect the AS3 Hybrid to reinforce the edges much more.
The all-foam Casper and Casper Hybrid cost considerably less than their AS3 counterparts. Sleepers who prefer deeper body-conforming may want to opt for an AS3 or AS3 Hybrid, while the Casper models are better suited to those who like some body-conforming and also a bit of a bounce from their mattress.
AS3 & AS3 Hybrid vs. Loom & Leaf
The Loom & Leaf by Saatva is a luxury mattress built with two memory foam layers over a high-density polyfoam base. Customers can choose from two firmness options for their Loom & Leaf, medium (5.5) or firm (8). This selection caters to a wide range of sleepers in terms of body type and preferred sleep position.
Aside from this difference, the all-foam AS3 and Loom & Leaf are very similar. Both mattresses excel at pressure relief due to their deeply conforming memory foam layers. The beds also isolate motion very well and do not produce any noise, making either model suitable for couples. They also tend to sleep somewhat hot, and edge support for both mattresses is fair at best.
Price-points for the all-foam AS3 and Loom & Leaf are also comparable, but customers should note the latter qualifies for free White Glove delivery anywhere in the contiguous U.S. This service includes in-home assembly and old mattress removal. Those who prefer a firmer memory foam bed should consider the Loom & Leaf, while those with medium firmness preferences can choose between either model.
AS3 & AS3 Hybrid vs. GravityLux
Like the all-foam AS3, the GravityLux by WinkBeds features a 3-inch comfort layer of open-cell memory foam. However, the mattress also has a cover padded with 2 inches of polyfoam, and this gives the mattress a more responsive feel akin to both sleeping “on” and sleeping “in” the mattress. The all-foam AS3, on the other hand, contours closely to create a deep, pressure-relieving cradle for the sleeper’s body.
The GravityLux is available in medium-soft (4), medium (5), and firm (7) designs. This selection ensures most sleepers can find a suitable option regardless of their personal preferences. The GravityLux has a slight edge over the all-foam AS3 in most performance categories, as well. Multiple firmness options ensure excellent pressure relief for sleepers across different weight and sleep position groups. The GravityLux also isolates more motion and sleeps cooler than the AS3.
The GravityLux costs a bit more than the all-foam AS3, but both models are fairly pricey for a memory foam mattress. Some shoppers will undoubtedly choose the all-foam AS3 due to its lower price-point, but for others, the GravityLux’s strong performance across different categories will justify the higher cost.
AS3 & AS3 Hybrid vs. Saatva
The Saatva is a luxury innerspring model featuring layers of polyfoam, memory foam, and pocketed minicoils over a support core of bonnell coils. The bed’s coil-on-coil design offers strong support and exceptional responsiveness, creating a feeling of sleeping “on” – not “in” – the mattress.
The Saatva is available in three firmness options – medium-soft (4), medium-firm (6), and firm (7.5) – as well as 11.5-inch and 14.5-inch profiles. This selection ensures most sleepers can find a suitable Saatva design regardless of their body type, preferred position, or comfort preferences.
The bed’s dual coil layers also circulate air very well, resulting in very good temperature neutrality. However, the AS3 Hybrid’s thick memory foam layer should ensure better motion isolation and pressure relief than the Saatva, which has a springier surface and does not conform very closely.
The Saatva costs much less than the AS3 Hybrid, and Saatva customers in the contiguous U.S. qualify for free White Glove delivery. That said, sleepers with pressure point issues will likely find the AS3 Hybrid more suitable due to its conforming memory foam layer. The mattress is also better for couples due to its superior motion isolation and low noise potential.
AS3 & AS3 Hybrid vs. TEMPUR-Adapt
The TEMPUR-Adapt is a fairly new mattress from Tempur-Pedic. Like the AS3, the TEMPUR-Adapt is available as either an all-foam or hybrid mattress – both with medium (5) feels. Due to their high-quality materials and sturdy designs, the AS3 and TEMPUR-Adapt models also have longer-than-average expected lifespans.
The all-foam AS3 and TEMPUR-Adapt beds both offer consistent pressure relief and very good motion isolation. They also lack strong edge support, and tend to sag significantly along the perimeter. Ratings are also comparable for the AS3 and TEMPUR-Adapt hybrid models. However, the latter has stronger coils along the edges that provide extra perimeter reinforcement.
Price will likely be a major deciding factor for many shoppers, as both the TEMPUR-Adapt all-foam and hybrid models are considerably more expensive than the AS3 models – though Tempur-Pedic offers free White Glove delivery anywhere in the contiguous U.S. For those who are not as concerned about cost, the TEMPUR-Adapt and AS3 models are very comparable in terms of construction, firmness, and performance.
Loom & Leaf Mattress
|AVAILABILITY||online, in-store||online, in-store||online, in-store||online, in-store||online||online||online||online, in-store||online, in-store|
|SLEEP TRIAL||100 nights||100 nights||100 nights||100 nights||180 nights||120 nights||180 nights||90 nights||90 nights|
|WARRANTY LENGTH||20 Year, Limited||20 Year, Limited||10 Year, Limited||10 Year, Limited||15 Year||Lifetime||15 Year, Non-prorated||10 Year, Limited||10 Year, Limited|
Sleep Trial 100 nights
Shipping Free to contiguous U.S.
Warranty 20 years, partially prorated
Made IN USA
Where Can I Buy the AS3 and AS3 Hybrid?
AS3 models are available for purchase on the Amerisleep website. The all-foam AS3 is also sold on Amazon.com, but the AS3 Hybrid is not yet available on that site. Amerisleep operates a total of 12 brick-and-mortar stores in Arizona, Colorado, Oregon, and Texas.
Where Do They Ship?
Amerisleep ships primarily to the contiguous U.S. Customers can coordinate deliveries to Alaska, Hawaii, Canada, or Mexico by contacting Amerisleep’s customer service line.
White Glove Delivery?
Amerisleep does not offer White Glove delivery at this time.
Old Mattress Removal?
Old mattress removal is not available with any Amerisleep orders.
Full Delivery Policy
The delivery policy for Amerisleep mattresses is as follows:
- Amerisleep provides curbside delivery through FedEx. Most mattresses ship to the customer’s address within three to five business days of the original purchase.
- Customers will be able to cancel their mattress order free-of-charge if it has not yet been shipped from the Amerisleep warehouse. If the mattress has already shipped, then customers may contact Amerisleep to stop the delivery, cancel their order and receive a refund.
- Customers will be able to track their Amerisleep order by signing into their customer account on the Amerisleep website or contacting the company over the phone or via email. For most orders, freight agents will contact the purchaser and schedule a four-hour window period for the date of delivery. Freight agents do not provide assistance with moving the mattress inside the residence, unpackaging, or in-home assembly.
- Most mattress orders will not require a customer signature, and adults do not need to be present at the time of the curbside delivery.
- Amerisleep does not ship mattresses to army/air post offices (APOs) or P.O. boxes.
Trial Period and Warranty Details
Trial: Amerisleep offers a 100-night sleep trial for all mattresses.
- This sleep trial includes a mandatory break-in period of 30 nights. Customers may not return their mattress until at least 30 nights have elapsed.
- Amerisleep covers all shipping costs associated with mattress returns.
- Mattress exchanges are available during the trial period, as well. If the mattress has not shipped, customers may exchange their mattress for another Amerisleep model immediately. Once the trial begins, customers must wait at least 30 nights before qualifying for a free exchange.
- Customers who select the wrong size will not be able to return or exchange their mattress.
Warranty: Amerisleep offers a 20-year warranty for the AS3 and AS3 Hybrid.
- The warranty is partially prorated. During the first 10 years, coverage is non-prorated and owners may have defective mattresses repaired or replaced at no extra cost. During the last 10 years, owners must pay 50 percent of the original mattress price to replace a defective mattress.
- Warranty coverage is contingent on proper foundational support. Per Amerisleep, mattresses are designed for use on a ‘solid wood, non-spring, completely flat foundation or bed platform’. The warranty will be voided if the mattress is used on an improper foundation, platform, or box spring. Additionally, customers who file a warranty claim must provide proof of a suitable foundation.
- The warranty will cover sagging or indentations in the sleep surface measuring three-quarters of an inch (3/4″) or deeper. The warranty also covers physical flaws in the mattress that cause materials to split or crack.
- The warranty does not cover sagging or indentations measuring less than three-quarters of an inch. The warranty also will not cover physical damage such as burns, cuts, or stains.
- The warranty is non-transferable, and is only valid for original owners who purchase their mattress from Amerisleep or an authorized retailer. Those who buy or acquire their mattress from the original owner or a non-authorized retailer do not receive warranty coverage.
7 out of 10 owner experiences show customers have had a positive experience with Amerisleep, irrespective of whether or not they liked their mattress.
Amerisleep was founded in 2007. Its sister company, AstraBeds, was launched the same year.
Amerisleep currently holds an ‘A’ rating with the Better Business Bureau.
Amerisleep operates 12 brick-and-mortar stores in Arizona, Colorado, Oregon, and Texas.
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