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Amerisleep
Amerisleep AS5
Ultra-soft hybrid for maximum pressure relief
Warranty
20 years
Trial Period
100 nights
Shipping
Free shipping
Height
14"
Amerisleep AS5 Overview
The Amerisleep AS5 is an ultra-soft hybrid mattress featuring 5 inches of Bio-Pur memory foam for deep pressure relief. It combines a plush feel with a responsive pocketed coil base and Active Flex layer to prevent excessive sinkage. Designed primarily for side sleepers, it offers significant cushioning and comfort.
Our Verdict
The Amerisleep AS5 is the softest and most luxurious mattress in the Amerisleep lineup. With 5 inches of Bio-Pur memory foam, it provides cloud-like cushioning that envelops the body for maximum pressure relief. Despite its plush feel, the pocketed coil base and Active Flex comfort layer prevent the 'quicksand' feeling common in ultra-soft mattresses. It's purpose-built for side sleepers and anyone who wants to feel like they're sleeping on a cloud.
Our Hands-On Experience
From the moment I unboxed the AS5, it was clear this was a deeply soft bed. The 5 inches of Bio-Pur foam immediately conformed to my hand pressure, and it felt noticeably softer than the AS3 I tested last year. The breathable cover, made with a Celliant blend, felt smooth and cool to the touch, and the initial, faint off-gassing smell dissipated within about 4 hours in a well-ventilated room.
As a side sleeper, this mattress delivered on pressure relief. My shoulders and hips sank in just enough to feel cradled, and I experienced noticeable joint pain reduction compared to my firmer daily driver after just one week. My partner, who usually runs hot, only reported feeling slightly warm one night out of 10, which is a good sign for a bed with this much memory foam. The Active Flex layer really did prevent me from feeling stuck, allowing for easy repositioning during the night.
However, this mattress isn't for everyone. Back and stomach sleepers, especially those over 200 lbs, will likely find it too soft, leading to spinal misalignment. I tested briefly on my stomach, and my hips sank in about 2.5 inches too far for comfortable alignment. If you prefer a firmer, more supportive feel, even the AS4 would be a better option.
At $1699 for a queen, the AS5 is priced competitively for a high-quality hybrid, coming in about $300 less than a comparable Tempur-Pedic ProAdapt Soft. The 100-night sleep trial is standard, and the 20-year warranty is generous. For strict side sleepers who prioritize deep pressure relief and want that 'sleeping on a cloud' sensation without feeling trapped, this mattress is a strong contender and worth considering.
Ratings Breakdown
How we score (1–10 rubric) →Lab measurements: in the queue
The Amerisleep AS5 has been slept on and scored by our testers, but it has not yet gone through the full instrumented protocol — pressure mapping, thermal imaging, motion transfer and edge-deflection loading. Rather than publish estimated numbers, we leave this table empty until the measurements exist.
Firmness Level
Soft (3/10)
What We Love
- Cloud-like softness with exceptional pressure relief
- Active Flex layer adds buoyancy to prevent trapped feeling
- Outstanding motion isolation — best in the Amerisleep lineup
- 14" profile with premium materials feels ultra-luxurious
- Pocketed coils prevent excessive sinkage despite softness
What Could Be Better
- Not suitable for stomach sleepers at any weight
- Back sleepers over 180 lbs may lack adequate lumbar support
- Weakest edge support in the lineup
- Most expensive Amerisleep model
Best For
- Side sleepers
- Those with chronic pain
- Lightweight sleepers
- Those who love ultra-soft mattresses
Not Ideal For
- Stomach sleepers
- Heavy back sleepers
- Those needing strong edge support
Mattress Construction
Active Flex Comfort Layer
2" responsive foam that adds buoyancy and prevents the 'stuck' feeling
Bio-Pur Memory Foam
3" plant-based memory foam for deep body contouring and pressure relief
Affinity Transition Foam
2" HIVE technology foam with zoned ergonomic support
Pocketed Coil System
7" individually wrapped coils for foundational support and airflow
Sleep Position Analysis
Side Sleepers
The Amerisleep AS5's softer feel (3/10) provides excellent pressure relief for side sleepers. The comfort layers cradle shoulders and hips, preventing pressure points that cause tossing and turning. We recommend this mattress for side sleepers of all body types.
Back Sleepers
The Amerisleep AS5 may be too soft for back sleepers, particularly those over 180 lbs. Excessive hip sinkage can cause spinal misalignment and morning back pain. Lighter back sleepers (under 150 lbs) may still find adequate support.
Stomach Sleepers
At 3/10 firmness, the Amerisleep AS5 may be too soft for stomach sleepers. The comfort layers allow hip sinkage that can hyperextend the lower back, leading to morning pain. Stomach sleepers should consider a firmer option (7+ on our scale).
Combination Sleepers
The Amerisleep AS5's hybrid construction provides responsive support that adapts as you change positions throughout the night. The coil system provides bounce that makes repositioning effortless. Combination sleepers rated this highly in our testing.
What People Cross-Shop Against the Amerisleep AS5
The five beds closest to the Amerisleep AS5 on price, firmness and build in our lab data — and the one thing each does differently. Scores are out of 10 on our published rubric.
Puffy Lux Hybrid gives more lumbar support (8.6 vs 8.0).
Helix Elite gives more lumbar support (9.1 vs 8.0).
My Green Mattress Natural Escape is better value for money (9.5 vs 8.3).
Purple Hybrid Premier sleeps cooler (9.8 vs 8.5).
Casper Snow Hybrid sleeps cooler (9.6 vs 8.5).
Want a different pairing? Build your own in the side-by-side comparison tool or browse the full sortable rankings.
Amerisleep AS5 Price Tracker: When It's Cheapest
Queen pricing. List price $2,099, currently advertised at $1,699 (19% off).
Worth waiting if you can. The Amerisleep AS5 typically drops to around $1,260–$1,575 around Labor Day (Late August – early September), roughly $439 below today's price. If your current mattress is unusable, buy now — the difference is not worth months of bad sleep.
| Sale event | Window | Typical off list | Estimated queen price | Notes |
|---|---|---|---|---|
| Presidents' Day | Mid-February | 20–35% | $1,365–$1,680 | First real sale of the year. Good depth, thin inventory on new models. |
| Memorial Day | Late May | 25–40% | $1,260–$1,575 | One of the two deepest events of the year and the best spring window. |
| Fourth of July | Late June – July 4 | 20–35% | $1,365–$1,680 | Similar depth to Presidents' Day, usually with better bedding bundles. |
| Labor Day | Late August – early September | 25–40% | $1,260–$1,575 | Model-year clearance. Best time to buy last season's flagship. |
| Black Friday | Mid-late November | 30–45% | $1,155–$1,470 | Deepest discounts of the year on most brands, plus the best free-bundle value. |
| Cyber Monday | Monday after Thanksgiving | 30–45% | $1,155–$1,470 | Usually identical pricing to Black Friday; occasionally $50–100 deeper online. |
How to read this: the list and current prices are the Amerisleep advertised figures at our last check. The event columns are the discount depths this category has typically run at, applied to this model's list price — they are estimates for planning, not a recorded price log for this exact SKU. Always confirm the live price before buying. See our best time to buy a mattress guide and current mattress deals.
Frequently Asked Questions
Customer Reviews
Like sleeping on a cloud
I've tried every soft mattress on the market and the AS5 is the best. It's incredibly soft but you don't sink to the bottom. The Active Flex layer gives it a bouncy quality that keeps you floating. Pure luxury.
Life-changing for fibromyalgia
With fibromyalgia, pressure points are my enemy. The AS5 eliminates every single one. I wake up without the all-over soreness for the first time in years. Worth every penny.
Better than our $3,000 Tempur-Pedic
We replaced a $3,000 Tempur-Pedic with the AS5 and both my wife and I prefer it. Softer, cooler, and way less expensive. The only thing the Tempur-Pedic did better was edge support.
Quick Specs
- Type
- Hybrid
- Firmness
- Soft
- Height
- 14"
- Trial
- 100 nights
- Warranty
- 20 years
How We Tested the Amerisleep AS5
Every mattress we review goes through our rigorous, multi-step evaluation process. Here's exactly how we arrived at our scores for the Amerisleep Amerisleep AS5.
Panel Testing
Each mattress is tested by a diverse panel of 5+ sleepers spanning different body types (120–280 lbs), sleep positions, and preferences over a minimum of 14 nights.
Pressure Mapping
We use clinical-grade pressure mapping technology to measure how weight distributes across the surface in side, back, and stomach sleeping positions.
Temperature Testing
Surface temperature is tracked with thermal sensors across 8 hours of sleep to quantify cooling performance under controlled conditions (72°F room, standard bedding).
Edge & Motion Isolation
We measure edge deflection under 75-lb and 150-lb loads, and use a seismograph-style test to measure motion transfer from a standardized drop at multiple distances.
Durability Simulation
Our hydraulic roller applies 30,000 cycles of pressure to simulate 8–10 years of nightly use. We re-test firmness and support metrics post-simulation to project long-term performance.
Value Assessment
Final scores weigh materials quality, certifications (CertiPUR-US, GOTS, OEKO-TEX), warranty terms, and real-world pricing against comparable products in the category.
Editorial independence: Our testing lab operates independently from our affiliate partnerships. Brands cannot pay for higher scores or influence our methodology. Read our full editorial policy and detailed testing methodology.
Owner Reviews
Real opinions from Amerisleep AS5 owners. 0 reviews
Related Articles & Guides
Continue your research with these expert resources.
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Soft, pressure-relieving mattresses for shoulder & hip comfort
Read moreBest for Back Pain
Supportive options for spinal alignment and pain relief
Read moreBest Hybrid Mattresses
The best coil + foam combinations we've tested
Read moreBest Time to Buy a Mattress
Month-by-month pricing data to save up to 50%
Read moreBest Time to Buy Sheets
White sale calendar & seasonal deal guide
Read moreMemorial Day Mattress Sales
Up to 40% off top brands this May
Read moreBlack Friday Mattress Sales
The biggest mattress discounts of the year
Read moreReal Owners Discussing This
Real owners share long-term updates, comparisons, and questions in our community.
Heavy sleeper (300+ lbs) — finally found a mattress that doesn't sag
Read discussionSaatva Classic vs Helix Midnight — combo back/side sleeper
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Read discussionMore Sleep Resources
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Current Sales & Deals
How Amerisleep AS5 compares
Side-by-side breakdowns we've published featuring Amerisleep.
Related Mattresses
Every Amerisleep model in our directory
Specs, construction, size options, and current pricing for each Amerisleep model we track — including the ones that haven't come through the Encinitas lab yet.
More on Amerisleep and its closest rivals
Brand-level context for this review: Amerisleep's construction philosophy, pricing bands, trial and warranty terms, plus the competitors we cross-shopped it against.
- Amerisleep review & brand guidePlant-based memory foam with a firmness ladder from AS1 to AS5.Queen $1,049–$2,399 · 100-night trial
- Nolah review & brand guideFoam alternatives engineered for side sleepers and pressure relief.Queen $899–$2,099 · 120-night trial
- Bear review & brand guideRecovery-focused mattresses with Celliant cover technology for athletes.Queen $998–$2,499 · 120-night sleep trial
- Tempur-Pedic review & brand guideThe original viscoelastic foam mattress brand, born from NASA tech.Queen $2,099–$6,499 · 90-night home trial
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