Amerisleep AS3 vs Layla Memory Foam: Which Foam Mattress Wins?

Two popular foam mattresses, two different ways of building comfort. The Amerisleep AS3 (all-foam) is a 12-inch medium-feel mattress built around plant-based Bio-Pur memory foam, a HIVE support layer and a Refresh cooling cover. The Layla Memory Foam is a 10.5-inch flippable mattress with copper-infused memory foam on both sides, so you can choose a soft or a firm feel just by turning it over. One is a single-sided medium design, the other is a two-sided firmness system. Skip the AS3 if you want to switch between soft and firm feels; the Layla Memory Foam lets you do that by flipping it. That difference shapes almost every decision below.

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Which mattress should you choose between the AS3 and the Layla?

The short answer: pick the Amerisleep AS3 if you want one medium feel that suits every sleeping position and you value a longer trial period. Pick the Layla Memory Foam if you are unsure about firmness and want the option to flip the mattress and change the feel, or if you share a bed and care about motion isolation. Both are all-foam mattresses with cooling-focused memory foam, but they solve the firmness question in opposite ways: the AS3 commits to one balanced feel, the Layla gives you two.

How do the two mattresses compare on paper?

The table below lines up every specification the brands publish for these two models. Read it as a quick orientation before the deeper sections on feel, cooling and policies.

What does each mattress feel like to sleep on?

The AS3 is described as a medium feel designed for balanced comfort and support across all sleeping styles. Its HIVE technology is built to maximize airflow and deliver targeted support, while the Bio-Pur memory foam is engineered to snap back to its original shape in seconds, so you do not sink in the way traditional memory foam can cause. Amerisleep says the surface contours without swallowing you.

The Layla takes a different route. Its Flippable Firmness system means one side is soft and the other is firm, and the copper-infused memory foam appears on both faces, so whichever side you choose you are still sleeping on the premium material. Layla describes the overall character as soft yet supportive, with copper-gel microbeads that react to increased pressure by firming up. That variable support is meant to give plush comfort on the surface while firming where compression is deepest.

For a sleeper who has never liked the feel of their current mattress, the Layla’s two-sided approach removes some of the guesswork. For a sleeper who already knows a medium feel works, the AS3 is the more direct choice.

Which one sleeps cooler?

Both brands put cooling at the center of their pitch, but they use different mechanisms. The AS3 combines a Refresh cover made from a fiber with high energy transfer that draws heat from the skin, with plant-based Bio-Pur foam whose open-cell design lets more air circulate than traditional foam. Amerisleep states that the sleeping surface stays on average 7 degrees cooler over an eight-hour night.

The Layla relies on copper infusion and airflow channeling. Its HR3COPPER foam uses copper-gel microbeads that, according to the brand, compress together to transfer body heat away from the body. A zoned transition layer with deep channeling is described as the primary conduit for airflow through the mattress. If a cool-to-the-touch cover is the feature you care about most, the AS3 has the clearer claim. If you prefer the heat management to happen inside the foam itself, the Layla’s copper approach is the one to consider.

How do materials and construction differ?

The AS3 is built entirely from foam layers, with Bio-Pur as the signature material. Bio-Pur is a plant-based memory foam that Amerisleep positions as more breathable and responsive than conventional memory foam, containing a fraction of the petrochemicals used in other memory foams. The mattress is fiberglass-free and described as non-toxic and eco-friendly. The HIVE layer provides the targeted support beneath the comfort foam.

The Layla’s headline material is HR3COPPER, a high-resilience copper memory foam rated at 3.5lb density, which Layla contrasts with the 2 to 3lb density of average memory foam mattresses. The copper infusion serves three stated purposes: thermal regulation, variable support and antimicrobial protection. Because the mattress is flippable, this foam sits on both the top and bottom of the layer stack.

Neither brand publishes a full layer-by-layer diagram on the pages reviewed here, so a shopper comparing internal build quality will find more published detail on the Layla’s foam density than on the AS3’s layer count.

Who should buy the Amerisleep AS3?

The AS3 is the better fit for a sleeper who wants a single, dependable medium feel and does not want to experiment with firmness. It is positioned as balanced comfort and support for all sleeping styles, which makes it a sensible default for combination sleepers who move between their back, side and stomach during the night. The 12-inch profile gives it a taller presence than the Layla, and the Refresh cover plus open-cell Bio-Pur is a coherent cooling story for someone who runs warm. The 100-night trial is shorter than Layla’s, but the 20-year warranty is a long horizon that the Layla page does not match with a published figure. Amerisleep also publishes a strong public review record: 15,000+ reviews at an average of 4.7 stars, plus the Newsweek Readers’ Choice Best Mattress 2026 recognition and an endorsement from the American Chiropractic Association.

Who should buy the Layla Memory Foam?

The Layla is for the sleeper who is not sure what firmness they need, or the couple who cannot agree on one. Flipping the mattress gives you a soft side and a firm side in the same purchase, which is a genuine hedge against getting the feel wrong. It is also the choice for a bed sharer who prioritizes motion isolation, since Layla states that movement stays contained where it starts. The 120-night trial is the longer of the two, and the copper-infused foam at 3.5lb density is a concrete material specification to weigh against the AS3. At 10.5 inches it is the lower-profile option, which matters if the bed frame or sheets have height constraints. The published review count stands at 8652.

What do trial, warranty and shipping look like?

The AS3 comes with a 100-night sleep trial, a 20-year warranty, and free shipping and returns, with the mattress made in the USA. The Layla page states free shipping, free returns and a 120-night trial; no warranty term or country of manufacture is given on the page reviewed here, so a shopper for whom those details are decisive should confirm them with Layla directly. On trial length alone, Layla gives you 20 more nights to decide.

Is one clearly better value?

Value here is about what you get for the money, and the two pages do not give us the same information to work with. The AS3 all-foam in queen size is listed at Queen: $1,149. What can be compared is the feature set: the AS3 pairs its price with a 20-year warranty and a cooling cover claim, while the Layla pairs its unpublished price with a flippable two-feel design, a longer trial and a published foam density figure. Decide which of those bundles matters more to you rather than chasing a number that is not on the table.

Which mattress wins this comparison?

The Amerisleep AS3 takes this face-to-face for the sleeper who wants a proven medium feel, a long warranty and a clearly published cooling claim, all in a fiberglass-free foam build. It is the more straightforward buy. The Layla Memory Foam wins the second scenario: if you are uncertain about firmness, want to flip between soft and firm, share the bed and value motion isolation, its flippable design and 120-night trial make it the smarter hedge. Neither mattress is sold by Saatva, and both are legitimate foam choices. If you would rather sleep on coils than foam, the Saatva Classic below is the alternative worth a look.

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Frequently asked questions

Is the Amerisleep AS3 the same as the Layla in firmness?

No. The AS3 has one published feel, medium, intended to work for all sleeping styles. The Layla has two, because it is flippable: one side is soft and the other is firm, and you choose by turning the mattress over.

Which mattress is taller?

The Amerisleep AS3 has a 12-inch profile. The Layla Memory Foam is 10.5 inches in every size listed, from twin through cal king.

Do both mattresses come with a sleep trial?

Yes. The AS3 is covered by a 100-night trial, and the Layla carries a 120-night trial. Both brands state free returns alongside those trials.

Does either mattress contain fiberglass?

The Amerisleep AS3 is explicitly described as fiberglass-free, non-toxic and eco-friendly. The Layla page reviewed here does not address fiberglass, so that is a question to put to Layla if it is a priority for you.

Can I finance either mattress?

The Layla product page offers a buy now, pay later option at checkout.

Reviewed by the World Sleep Almanac editorial team. Updated October 2026.