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Amerisleep
Amerisleep AS3 Memory Foam Mattress

Amerisleep AS3 Memory Foam Mattress

4.7· 8,300 ratings

Best price now

$999.00at AmerisleepObserved at 6:47 AM
Deal: 33% off at Amerisleep →

Prices are checked against each store and labelled with when.

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Our take on the Amerisleep AS3 Memory Foam Mattress

The Amerisleep AS3 is a 12-inch medium-feel memory foam mattress built on plant-based Bio-Pur foam and a five-zone HIVE support layer, with a Refresh cover the brand says runs about 7 degrees cooler than a standard polyester cover. It is fiberglass-free, OEKO-TEX and CertiPUR-US certified, and ships compressed in a box. It suits most body types and all sleep positions, and the medium feel is the middle of Amerisleep's firmness lineup. The best new price is $999 at Amerisleep as of November 3, 2026, and it has held at $999 every day since October 29, 2026, so there is no discount to wait for right now.

Best forSide and combination sleepers who want pressure reliefHot sleepers who dislike traditional memory foam heatCouples wanting a medium feel that suits both partnersShoppers avoiding fiberglass and wanting certified foams
Pros
  • Medium feel works for most body types and sleep positions
  • Bio-Pur plant-based foam and cooling Refresh cover target hot sleepers
  • Five-zone HIVE layer adds targeted support under hips and shoulders
  • Fiberglass-free, OEKO-TEX and CertiPUR-US certified
  • Bed-in-a-box delivery is simple to set up
  • Backed by a 20-year warranty and 100-night sleep trial
Cons
  • No foundation included; an adjustable base or frame costs extra
  • All-foam design has less bounce and edge support than hybrids
  • Only one store lists it, so there is no price competition
  • Medium feel may be too soft for heavy back and stomach sleepers
  • Returns and warranty claims go through Amerisleep only

Amerisleep AS3 Memory Foam Mattress prices at every store

  • AmerisleepNew

    In stock

    $999.00Observed at 6:47 AM
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Amerisleep AS3 Memory Foam Mattress price history

$999.00$999.00
Oct 29Nov 3

Lowest price we've seen: $999.00 on Oct 29 at Amerisleep. Tracked across 1 store since Oct 29.

What reviewers say

With 4.7 out of 5 from about 8,300 ratings, owners mostly report cool, supportive sleep and relief from hip and pressure-point pain. Complaints are few and mostly about buying sight unseen rather than the mattress itself.

Pros
  • Sleeps cool and breathable for a memory foam bed
  • Comfortable yet supportive, especially for side sleepers
  • Relieves pressure points and hip issues
  • Helps restless sleepers and their partners sleep better
Cons
  • Some buyers were nervous ordering without trying it first
  • A few side sleepers worried about comfort before it arrived

From Amerisleep

  • Best-selling medium-feel mattress tailored to most body types and sleep styles
  • 12-inch profile with plant-based Bio-Pur® memory foam for cooling comfort
  • HIVE® five-zone support system for targeted support and pressure relief
  • Refresh Cover draws heat away, staying about 7 degrees cooler than a traditional polyester cover
  • Fiberglass-free, eco-friendly and non-toxic construction
  • Voted Newsweek Readers' Choice #1 Best Mattress 2026 and endorsed by the American Chiropractic Association
Sizes
Twin, Twin XL, Full, Queen, King, Cal King, Split King
Materials
Plant-based Bio-Pur® memory foam; Bio-Core® base layer; Refresh Cover knitted with minerals; CertiPUR-US® certified, fiberglass-free
Fit
Medium feel; 12-inch profile; designed for all sleep styles
Sizing
Medium feel suits most body types and all sleep positions; side sleepers note initial worry but report good sleep
Care
Use a waterproof mattress protector; rotate head to foot every six months; removable and washable cover
Guarantee
20-year warranty: full replacement for defects including sagging over 1.5 inches for the first 10 years, prorated replacement for the second 10 years
Returns
100-night risk-free sleep trial; free returns with full refund after the first 30 nights, courier pickup arranged
Shipping
Free shipping within the continental US via FedEx, compressed in a box; most orders arrive in two weeks or less
Packs
All-foam and hybrid (foam + coils) versions offered
In the box
Mattress compressed and shipped in an eco-friendly box

What buyers say

Buyers like
  • Sleeps cool and breathable
  • Comfortable yet supportive
  • Relieves pressure points and hip issues
  • Helps restless sleepers and partners sleep better
  • Eco-friendly and fiberglass-free
  • Good for side sleepers
Buyers complain about
  • Some were nervous buying without seeing it first
  • One side sleeper was initially worried about comfort

Specifications

Firmness Level
Medium
Mattress Type
Memory Foam
Type
Mattress
Length
84 in (Cal King)
Width
76 in (King)
Certifications
OEKO-TEX certified materials, CertiPUR-US
Core Material
Bio-Core base layer, Foam

Questions and answers

Is the AS3 worth $999?
At $999 it sits in the middle of the memory foam market while offering certified, fiberglass-free foams and a cooling cover. If you want a medium all-foam bed with a sleep trial, it is a fair buy; hybrid fans can find more edge support elsewhere.
How does the AS3 compare with the AS2 and AS4?
The AS3 is the medium option between the softer AS2 and the firmer AS4. Most back, side and combination sleepers land on the AS3; heavier or stomach sleepers often prefer the AS4.
Does it sleep hot?
Owners commonly say it sleeps cooler than older memory foam beds, helped by the Bio-Pur foam and Refresh cover. Very hot sleepers may still want a cooling pillow or a breathable mattress protector.
What sizes and dimensions does it come in?
It comes in twin through Cal King, with the King at 76 by 80 inches and the Cal King at 72 by 84 inches, all 12 inches thick. Measure your frame and room before choosing.
Do I need a box spring or foundation?
No foundation is included, and Amerisleep recommends a solid platform or adjustable base rather than a traditional box spring. Budget for that base on top of the mattress price.
When is the AS3 cheapest?
The price has been $999 at Amerisleep every day since October 29, 2026, with no dip recorded. Holiday sales are the usual time for discounts, so check back around major sale periods.
Where is the Amerisleep AS3 Memory Foam Mattress cheapest?
At Amerisleep, for $999.00, 33% off, as of our latest check.
Is the Amerisleep AS3 Memory Foam Mattress at its lowest price?
Yes: $999.00 is the lowest price we've seen for it since October 29.
What do buyers say about the Amerisleep AS3 Memory Foam Mattress?
Rated 4.7 out of 5 from 8,300 ratings. Buyers like: Sleeps cool and breathable; Comfortable yet supportive; Relieves pressure points and hip issues. Common complaints: Some were nervous buying without seeing it first; One side sleeper was initially worried about comfort.
Cover Material
Refresh Cooling Cover
Material
Memory Foam/Fiberglass Free
Foundation Type
Adjustable Base
Foundation Included
No
Fill Material
Memory Foam
Fill Type
Bio-Pur memory foam
Fill Style
Medium feel
Fill Specialty Style
Hypoallergenic
Construction Highlights
Bed-in-a-box design
Sleep Position
All sleep positions
Style
Modern (Amerisleep Foundation)
For Kids
Yes
Typical Users
Most body types, Hot sleepers
Age Range
Kids, Adults