Amerisleep AS3 vs Cocoon Chill Hybrid: Price, Trial & Specs

What we checked: Queen price, published specifications, trial terms, and warranty summaries. Checked on September 29, 2026.

What matters most in this matchup

The AS3 is a 12-inch all-foam mattress that Amerisleep labels medium. Its published design highlights Bio-Pur memory foam and HIVE zoned support. The Cocoon Chill Hybrid is also 12 inches and medium, but combines memory foam with fabric-encased coils; Cocoon highlights a reinforced perimeter and a more responsive feel.

See the AS3 Queen price and current offer at Amerisleep

Queen price: what the comparison actually says

At the time checked, Amerisleep displayed the AS3 Queen at $1,249, reduced from a listed $1,749. Cocoon displayed the Chill Hybrid Queen at $1,149. That makes the Cocoon $100 less at the Queen size on the pages viewed. The AS3 promotion was shown as a $500 saving; the Cocoon page carried a limited-time offer banner and a gift-card promotion for select sizes. Don’t treat either promotion as permanent or add a gift-card value as though it were a cash discount.

I’m listing only the Queen prices I directly read from each official size selector rather than filling a full-size price grid with unverified numbers. Both sites offer multiple sizes; select each size on the current product page for its live total. Bedding bundles, bases, taxes, delivery details, and promotional eligibility can change the checkout total.

Compare the same configuration: the AS3 selected here is all-foam, not the AS3 Hybrid. On the Cocoon page, choose the Hybrid option rather than the separate Chill Memory Foam construction. If you’re shopping a split setup or a base bundle, recheck the selected model, size, and total before comparing.

What each mattress is built to do

Amerisleep’s product page describes the AS3 as a medium-feel, 12-inch mattress. Its construction centers on Bio-Pur memory foam and HIVE technology, which Amerisleep presents as zoned support. For you, that means the brand is selling a familiar contouring foam feel with a defined medium label—not a springy hybrid response.

Cocoon’s Chill Hybrid also has a stated 12-inch profile and medium feel. Its layers include a cooling cover, Perfect Fit memory foam, responsive comfort foam, and a coil layer with 900+ fabric-encased coils, according to Cocoon. The brand also describes Quantum Edge reinforced steel around the perimeter. This is the more conventional hybrid choice if you want coils under the foam rather than an all-foam core.

Both brands advertise cooling features. Amerisleep describes its Refresh cover and Bio-Pur foam as cooling; Cocoon describes a cool-to-the-touch cover with phase-change material that absorbs and dissipates heat. Those are the manufacturers’ descriptions, not a head-to-head temperature test. If you sleep hot, remember that sheets, room temperature, and your own heat sensitivity matter too.

Which one fits your sleeping position?

• Side sleepers: Both are advertised medium mattresses, so either could be a starting point if you want cushioning without choosing a plush model. I’d lean AS3 if all-foam contouring is your priority, and Cocoon if you want the coil layer beneath that cushioning.
• Back sleepers: The medium labels make both plausible options for shoppers who don’t want an especially firm feel. The AS3 gives you an all-foam support design; Cocoon adds coils and a reinforced edge. Your weight and comfort preference will influence how either feels.
• Stomach sleepers: I would be cautious if you specifically need a firm surface. Neither is marketed here as a firm mattress, and the official product pages don’t give a universal position-by-position fit guarantee.
• Combination sleepers: Cocoon’s hybrid build is the more natural pick on paper if you prioritize coil responsiveness. Amerisleep describes the AS3 as suitable across sleep styles, but actual ease of changing positions wasn’t measured here.

My quick recommendation: For an all-foam medium, choose AS3; for medium comfort with springs and a reinforced edge, choose Cocoon Chill Hybrid. These are recommendations based on published construction and feel labels, not personal test results.

Who should not buy either mattress?

Skip the AS3 if you want a firm mattress, an innerspring feel, or you don’t want to pay the higher Queen price observed here. Its official product page describes an all-foam mattress, so it is not the right match if you specifically want coils.

Skip the Cocoon Chill Hybrid if you want an all-foam mattress with no coil layer, or if a brand’s advertised medium feel is not the firmness you need. The hybrid’s reinforced perimeter and responsive coil design are part of its appeal; shoppers wanting a uniformly foam-based feel should compare the separate Chill Memory Foam model instead.

Trial, returns, delivery, and warranty

Both brands advertise a 100-night trial, but the headline duration is not the whole policy. Here is what each trial really costs you:

Amerisleep advertises a 100-night trial and free returns on the AS3 product page. Cocoon also advertises a 100-night trial and says it will pick up the mattress if you return it within the trial. The official product-page summaries reviewed don’t spell out a minimum-night requirement, repeat-trial limit, or every return exception, so I’m not assigning either brand a fee-free promise beyond its own published wording. Read the linked policy before ordering, especially if you may return the bed.

Amerisleep lists free shipping and returns and currently displayed a ship estimate of 2–7 business days on the AS3 page. Cocoon displayed free shipping and a three-business-day shipping statement for the selected Chill Hybrid Queen. These are page-level shipping messages, not a guaranteed delivery appointment; confirm the current estimate for your ZIP code and selected size.

The AS3 is backed by Amerisleep’s 20-year limited warranty. The product page says the first 10 years include replacement for defects, including sagging greater than 1.5 inches; later coverage has different terms. The Cocoon product page advertises a 10-year mattress warranty. The exact exclusions, foundation requirements, claim process, and any prorated costs are in the respective warranty documents; don’t assume warranty length alone tells you how easy a claim will be.

Cocoon states that its mattresses need a solid, elevated surface and marks power bases, flat foundations, and platform beds compatible; it marks a box spring and floor as incompatible. Confirm your existing bed frame meets the current support instructions. Amerisleep’s warranty and setup requirements should likewise be checked in the warranty document before purchase.

Also considered

• Cocoon vs Casper is useful if you’re comparing two online mattress brands beyond this Amerisleep head-to-head.
• Is Cocoon by Sealy worth it? looks at Cocoon’s broader value proposition and helps if you’re unsure whether to stay with the brand.
• Amerisleep AS3 Hybrid is another model to compare if you like the AS3’s medium positioning but want coils; it is a different mattress from the all-foam AS3 reviewed here.

How to choose between foam and coils

Start with the sensation you want, not the brand name. The AS3 keeps the support system foam-based from top to bottom. If you like a surface that contours around you and want to avoid a coil layer, that design distinction may settle the choice before you compare promotions. Its HIVE zoning is a named part of the product architecture; Amerisleep does not provide an independent lab comparison here proving that every sleeper will feel a particular alignment benefit.

The Cocoon adds a separate coil layer beneath its comfort foams. Cocoon says its fabric-encased coils move independently, while its reinforced steel perimeter is intended to add edge support. That gives you a specific reason to choose the hybrid if you sit or sleep near the side or simply prefer a springier construction, but don’t read a design description as proof of a particular edge score. We have not measured either mattress’s edge compression or motion transfer.

The official pages use a medium label for both beds, so firmness alone doesn’t separate them. A firmness label is a useful starting point, not a guarantee that two mattresses feel identical: the materials and support layers differ, and body weight and sleep position change how much each sleeper sinks in. If you already know that you dislike memory-foam contouring, the Cocoon’s coils may be the stronger fit. If you know you prefer an all-foam surface, the AS3 is the clearer choice.

Take your bed frame into account before you order. Cocoon says its mattress needs a solid elevated surface and explicitly lists a box spring and the floor as incompatible. Confirm the AS3’s current foundation rules in its warranty document, and check slat spacing and center support against the exact terms for your chosen size. A base that feels sturdy is not automatically one that satisfies a manufacturer’s warranty.

Finally, compare checkout totals rather than banner language. The AS3 page displayed both a sale and reference price, while Cocoon’s product page displayed the selected Queen price alongside a temporary promotion. The $100 Queen difference observed here is a snapshot, not a lasting price gap. If one mattress is back at full price and the other is discounted, the value call can change quickly.

Frequently asked questions

Is the Amerisleep AS3 better than the Cocoon Chill Hybrid?

For an all-foam medium mattress and longer stated warranty, I’d pick the AS3. If you want coils, a reinforced edge, and the lower Queen price in this comparison, choose Cocoon Chill Hybrid.

Which mattress is cheaper in Queen?

The official pages displayed $1,149 for Cocoon Chill Hybrid Queen and $1,249 for Amerisleep AS3 Queen when checked on September 29, 2026. Promotions change, so confirm the live selected-size price at checkout.

Do both mattresses have a 100-night trial?

Yes. Both brands advertise a 100-night trial. Cocoon says it will pick the mattress up if you return it; Amerisleep advertises free returns. Review each policy for the full conditions before ordering.

Does the Cocoon Chill Hybrid have a cooling cover?

Yes. Cocoon describes its cover as cool-to-the-touch and says it uses phase-change material to absorb and dissipate heat. That is the brand’s product claim; we did not measure sleeping-surface temperature.

Can I use the Cocoon on a box spring?

Cocoon’s product page marks box springs incompatible and says the mattress needs a solid, elevated surface. Check the manufacturer’s current support instructions for your exact foundation.

Is AS3 all foam or hybrid?

The AS3 is sold in all-foam and hybrid versions. This comparison covers the all-foam AS3 only; check the model selector before you buy.

Bottom line: I’d buy the Amerisleep AS3 for a medium all-foam feel and its 20-year limited warranty. Choose the Cocoon Chill Hybrid instead if coils and lower observed Queen pricing matter more to you.

Check today's price at Amerisleep