by Amerisleep AS3 vs AS4 2026: Current Options for AS4 Owners
The AS4 is not in Amerisleep’s current lineup. Start with the AS3 if you want a medium all-foam mattress, or compare the medium-firm AS2 and softest all-foam AS5.
The AS4 is not in the current lineup. The Amerisleep AS3 is our first current recommendation, rather than a guaranteed match for an older AS4. Choose AS2 for medium-firm or AS5 for the softest all-foam feel.
Amerisleep AS3
9.1/10
- HIVE 5-zone support
- Bio-Pur foam in a 12-inch all-foam build
- CertiPUR-US certified, made in the USA
- 365-night trial; 20-year warranty
- One medium feel; no firmness choice
- Softer edges than a coil hybrid
The AS3 is our first pick for a medium all-foam feel: Bio-Pur foam, HIVE 5-zone support, 12-inch height, a 365-night trial, and a 20-year warranty. The queen is $1,149 on sale ($1,749 regular).
TL;DR: AS4 Is Gone. Here Is What You Need to Know.
Amerisleep AS4 (Not in Current Lineup)
- Medium-soft 4/10 firmness
- Archived model
- No current AS4 price
- Not in Amerisleep’s current lineup
Amerisleep AS3 (Our Current First Pick)
- Medium feel
- Bio-Pur + HIVE 5-zone support
- 12” all-foam
- From $1,149 queen
- Try the medium feel at home for 365 nights
Bottom line: Choose by the feel you want now: AS3 for medium, AS2 for medium-firm, or AS5 for the softest all-foam option.
What this guide covers
The Amerisleep AS4: What It Was
An older AS4 listing is not a guide to what Amerisleep sells today. Compare current models by feel and construction rather than assuming a newer model duplicates your old mattress.
Amerisleep AS4 Specifications (Discontinued) DISCONTINUED
- Firmness: Medium-soft 4/10
- Certifications: CertiPUR-US
- Trial / Warranty: 365 nights / 20-year warranty
- Status: Not in the current lineup
If you liked your AS4, think about what you want to preserve: a foam feel, a softer surface, or a particular amount of cushioning. Those preferences are more useful than an unsupported claim that another mattress feels a fixed percentage the same.
For the archived review, see our Amerisleep AS4 review. For the broader lineup, see all Amerisleep mattress reviews.
What the Current Lineup Offers
The AS4’s absence from the current lineup does not establish when or why Amerisleep stopped selling it. For a purchase today, focus on the available models and their stated feel.
Current choices
AS2, AS3, AS3 Hybrid, AS5, AS5 Hybrid, AS6 Black Series, and Organica are the current choices. AS1 and AS4 are not in the current lineup.
Zoned support
The AS3 has HIVE 5-zone support. Choose it for the current medium feel rather than trying to infer how it will compare with a worn AS4.
Foam or hybrid
Choose the all-foam AS3 for a foam support core. The AS3 Hybrid puts Bio-Pur over pocketed coils while keeping a medium feel.
Home trial
Use the 365-night mattress trial to judge the feel at home. The warranty covers defects and is separate from deciding whether the mattress is comfortable for you.
Your base, an older mattress’s wear, and your preferences all affect the comparison. Give the new mattress time at home before deciding how it feels.
Current AS3: Construction and Feel
HIVE is the AS3’s five-zone support system. Consider it alongside the mattress’s overall medium feel rather than treating it as a separate firmness setting.
If you want more cushioning than the AS3 provides, compare the AS5. It is the softest all-foam model, at $1,749 for a queen on sale ($2,349 regular).
AS3 Specifications (Current Model)
- Firmness: Medium
- Construction: 12” all-foam, Bio-Pur + HIVE transition layer + Bio-Core base
- HIVE zoning: 5-zone targeted support (lumbar firm, hip/shoulder soft)
- Foam type: Bio-Pur foam
- Certifications: CertiPUR-US
- Trial / Warranty: 365 nights / 20-year warranty
- Queen price:$1,249 sale ($1,749 regular)
For the full current review: Amerisleep AS3 review. For the hybrid version: Amerisleep AS3 Hybrid review 2026.
Former AS4 Buyer’s Guide: Which Mattress Now
Start with your current preference. A mattress you liked years ago may have softened, and a replacement need not copy its feel exactly.
Amerisleep AS3: If You Liked the AS4
$1,149 queen on sale
The AS3 is worth trying if you still want a medium all-foam feel. Its queen costs $1,149 on sale, and the 365-night trial gives you time to judge it at home. Use comfort at home to decide whether it is the right fit.
Choose the AS3 if you want one medium feel and an all-foam support core.
Amerisleep AS5 Hybrid: Maximum Pressure Relief
$2,049 queen on sale
The AS5 Hybrid queen is $2,049 on sale ($2,649 regular). Compare it if you want the hybrid option; the all-foam AS5 is the softest model and costs $1,749 for a queen on sale.
Choose the AS5 Hybrid if a hybrid construction is part of what you want. Do not treat body weight alone as a guarantee of fit.
Amerisleep AS2: If AS4 Felt Too Soft
From $949 queen
The AS2 is medium-firm, all-foam, and 12 inches tall. At $949 for a queen on sale ($1,549 regular), it is the firmer direction to compare with the medium AS3.
Choose the AS2 if: you primarily sleep on your back or stomach, the AS4 felt borderline soft, or you want firm spinal support.
AS3 vs AS5 Hybrid vs AS2: Side-by-Side
| Mattress | Type | Firmness | Trial | Warranty | Queen price |
|---|---|---|---|---|---|
| Amerisleep AS3 (our current pick) | All-foam Bio-Pur | Medium 5/10 | 365 nights | 20 years | $1,149 (queen) |
| Amerisleep AS5 Hybrid | Hybrid (foam + coils) | Soft 3/10 | 365 nights | 20 years | $2,049 (queen sale) |
| Amerisleep AS2 | All-foam Bio-Pur | Medium-firm 6/10 | 365 nights | 20 years | From $949 |
FAQ: Amerisleep AS3 vs AS4 Transition
Was the Amerisleep AS4 discontinued because of quality problems?
The AS4 is not in the current lineup. Its absence does not establish a quality problem or a corporate reason for retiring it.
Is the Amerisleep AS3 a good replacement for the AS4?
It is a sensible starting point if you want a medium all-foam feel. It is not a verified like-for-like replacement, so use the trial to decide whether it suits you.
What is HIVE zoning on the current AS3?
HIVE is the five-zone support system used in the current AS3. Current AS3 specifications do not establish how every historical AS4 was built.
Can you still buy the Amerisleep AS4 anywhere?
The AS4 is not part of Amerisleep’s current lineup. If you encounter an older reseller listing, confirm its condition and purchase terms rather than assuming it carries current-model terms.
Is the AS3 or AS5 Hybrid closer to the AS4 feel?
A precise feel match is not established. AS3 is the medium all-foam choice; AS5 is the softest all-foam option. Compare the AS5 Hybrid separately if you want a hybrid.
What weight range does the AS3 support for former AS4 buyers?
Amerisleep publishes no weight limit per side. That does not guarantee comfort at every weight; judge the medium feel during the trial and compare a firmer or softer model if needed.
Did Bio-Pur foam change between the AS4 and the current AS3?
The current AS3 uses Bio-Pur foam. A formula change, improved cooling, or a specific performance gain over the AS4 is not established by those current specifications.
Is the AS3 Hybrid a better option for former AS4 buyers than the all-foam AS3?
The AS3 queen is $1,149 on sale; the medium AS3 Hybrid is $1,349. The hybrid puts Bio-Pur over pocketed coils. Pay the extra $200 if that construction is what you want, rather than expecting it to recreate an older AS4. See the full AS3 Hybrid review 2026.
How does the AS3 trial and warranty compare to what the AS4 offered?
The current AS3 includes a 365-night trial and a 20-year warranty, with full replacement in years 1–10, then prorated coverage. Review an older AS4 purchase under its own original terms.
Verdict
Short answer: buy the AS3
Start with the AS3 if you want a medium all-foam mattress. Choose the medium-firm AS2 if you want less give, or the AS5 if you want the softest all-foam feel.
Former AS4 owners: Try the medium AS3 if you want to stay with all-foam. Let comfort at home determine whether it is the right replacement.
If the AS4 felt too soft: The medium-firm AS2 is the firmer all-foam direction. Its queen is $949 on sale.
If the AS4 felt marginally too firm: Compare the AS5 for the softest all-foam feel or the AS5 Hybrid for hybrid construction. Their queen sale prices are $1,749 and $2,049 respectively.
AS4 Is Not Current. Start With the AS3.
Medium all-foam feel; queen $1,149 sale ($1,749 regular).