Amerisleep AS3 vs AS5 side by side comparison. Theses mattresses are two of the most popular mattresses in Amerisleep’s lineup, but they’re designed for very different sleepers. While both use Amerisleep’s bio-based foams and zoned support system, the key difference comes down to firmness, feel, and pressure relief.
This comparison breaks down comfort, firmness, cooling, support, durability, and ideal sleep positions so you can decide which Amerisleep mattress is right for you.
🛏️ Quick Comparison
| Feature | Amerisleep AS3 | Amerisleep AS5 |
|---|---|---|
| Firmness | Medium (5.5–6/10) | Medium-soft / Plush (4–5/10) |
| Best for | Side, back, combo sleepers | Side sleepers, pressure relief |
| Mattress type | Hybrid | Hybrid |
| Feel | Balanced, adaptive | Plush, contouring |
| Cooling | Good | Good |
| Motion isolation | Very good | Excellent |
| Stomach sleepers | Sometimes | Not recommended |
| Warranty | 15 years | 15 years |
💤 Amerisleep AS3 vs AS5 Comfort & Feel
Amerisleep AS3
The AS3 offers a balanced, adaptive feel that contours without deep sink. It provides noticeable pressure relief while still keeping sleepers lifted and supported. This makes it a strong option for sleepers who change positions throughout the night.
How We Test Mattresses
Our reviews are based on firsthand, hands-on testing and real-world sleep experience. We evaluate mattresses using consistent criteria, including pressure relief, spinal alignment, motion isolation, temperature regulation, and durability. We do not use any fancy gimmicks, proprietary scoring systems, or manufacturer-provided ratings. Each mattress is tested the same way so comparisons are fair, transparent, and based on actual performance, helping readers make informed, trustworthy buying decisions. Read our full mattress testing methodology!
Amerisleep AS5
The AS5 is significantly softer, delivering a plush, body-hugging feel. It excels at relieving pressure around the shoulders and hips, especially for side sleepers who need extra cushioning.
🧍 Amerisleep AS3 vs AS5 Firmness & Support
- AS3: Medium feel that supports the spine well for side and back sleepers
- AS5: Medium-soft feel focused on comfort rather than firmness
If you need more spinal lift or tend to sleep on your back, the AS3 is usually the better choice. If pressure relief is your top priority, the AS5 shines.
🌬️ Amerisleep AS3 vs AS5 Cooling & Temperature Regulation
Both mattresses perform similarly when it comes to cooling:
- Breathable quilted covers
- Coil cores that promote airflow
- Bio-based foams that sleep cooler than traditional memory foam
Neither mattress is designed specifically for extreme hot sleepers, but both sleep cooler than typical all-foam beds.
🔁 Motion Isolation & Couples
- AS3: Very good motion isolation with a slight bounce
- AS5: Excellent motion isolation thanks to thicker plush foams
Couples who are sensitive to movement may prefer the AS5, while combination sleepers may appreciate the AS3’s easier movement.
🔧 Edge Support
Both models offer solid edge support for hybrid mattresses:
- Stable edges for sitting
- Minimal roll-off when sleeping near the perimeter
Edge performance is comparable between the two.
🪶 Durability & Longevity
Both the AS3 and AS5 are backed by a 15-year warranty, which is longer than average. However:
- The AS3’s firmer feel may hold up better for heavier sleepers
- The AS5’s plush comfort layers may soften faster over time, especially under higher weights
✅ Pros & Cons
Amerisleep AS3
Pros
- Balanced comfort and support
- Better for back and combo sleepers
- Easier to move on
- More versatile firmness
Cons
- Not plush enough for some side sleepers
- Average cooling performance
Amerisleep AS5
Pros
- Excellent pressure relief
- Plush, luxurious feel
- Great for side sleepers
- Strong motion isolation
Cons
- Too soft for stomach sleepers
- Not ideal for heavier sleepers
- Less supportive feel overall
🧠 Final Verdict: Amerisleep AS3 vs AS5?
Choose the Amerisleep AS3 if you:
- Want a balanced, medium feel
- Sleep on your side or back
- Change positions during the night
- Need more overall support
Choose the Amerisleep AS5 if you:
- Prefer a plush, soft mattress
- Are a dedicated side sleeper
- Need maximum pressure relief
- Are lighter-to-average weight
Both are well-made hybrids — the best choice depends on whether you value support (AS3) or plush comfort (AS5).
Compare Pricing of both below:
🔗 Helpful Next Steps
- Read the full Amerisleep AS3 review
- Read the full Amerisleep AS5 review
- See both models featured in our Best Mattress Guide
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