Side-by-side mattress testing · 144+ comparisons published
Updated September 2026
Category
Amerisleep AS3
Nectar Memory Foam
Comfort
Not lab tested
9.6/10
Support
Not lab tested
9.2/10
Cooling
Not lab tested
8.8/10
Edge Support
Not lab tested
8.5/10
Motion Isolation
Not lab tested
9.7/10
Durability
Not lab tested
9.3/10
Value
9/10
9.9/10
Blank cells mean that model has not completed our instrumented lab protocol, so we publish no measured score for it. We never estimate a number we have not recorded.
Quick Specs Comparison
Spec
Amerisleep AS3
Nectar Memory Foam
Price (Queen)
$1,049
$699
Type
Memory Foam
Memory Foam
Firmness
5.5/10
6/10
Height
12 inches
12 inches
Trial
100 nights
365 nights
Warranty
20 years
Forever Warranty
Shipping
Free shipping
Free shipping & returns
Manufacturer Specs Compared
Figures each brand publishes on its own product page. Values a brand does not publish show as "Not published".
| Spec | Amerisleep AS3 | Nectar Memory Foam |
|---|---|---|
| Profile height | Not published | 12" |
| Layers published | Not published | 3 |
| Cover material | Not published | Polyester-blend cover with polyethylene cooling fibres |
| Coil count | Not published | Not published |
| Coil gauge | Not published | Not published |
| Zoning | Not published | Not published |
| Foam density | Not published | Not published |
| Fire barrier | Not published | Not published |
| Certifications | Not published | CertiPUR-US |
| Made in | Not published | Assembled in Jeffersonville, IN, USA |
| Queen dimensions | Not published | 60" W x 80" L x 12" H |
| Queen weight | Not published | 70 lbs (filling material) |
Sources: Nectar official page
Key Advantages
Why Choose Amerisleep AS3
- Plant-based foam is more eco-friendly
- Balanced medium feel
- More responsive than traditional memory foam
Why Choose Nectar Memory Foam
- Exceptional value - premium feel at budget price
- Forever warranty - unprecedented coverage
- Outstanding motion isolation for couples