Product
Firmness
Score

Product
Firmness
Score

Product
Firmness
Score
Amerisleep AS3 vs. AS4: Top Similarities
- The mattresses come from the same company, so things like trial periods, return policies, and customer service quality will all be exactly the same.
- Both mattresses use bio-based memory foams that are open-celled and more environmentally friendly.
- Both are catered to side sleepers and combination sleepers who want great comfort and support.
- Both feature a Refresh Cooling Cover, which is made with technology that is purported to improve circulation.

Amerisleep AS3 vs. AS4: Key Differences
- The AS4 is slightly softer, which may make it more appropriate for side sleepers.
- The comfort layer of the AS4 is one inch thicker, which is ideal for side sleeping.
- The AS3 costs $300 less than the AS4 because it is thinner overall.

Who Should Pick the AS3
- People who are on a tighter budget (I think given the price range the AS3 is a slightly better value)
- Those who are heavier and need a more supportive mattress
- People who don’t exclusively sleep on their side but prefer back sleeping

Amerisleep AS3 Mattress

The Amerisleep AS3 is the brand’s most popular model and offers an excellent balance of comfort and support.
Product Details
Material
Foam
Firmness
Medium-firm: 6.5/10
Sleep Trial
100 nights
Warranty
20-year warranty
Shipping
Free shipping minus HI and AK
Price
$$$$$
Our Recommendation
We recommend this mattress for the following sleeper types:
Side Sleepers
This bed offers pressure relief at both the shoulders and hips, making it a great fit for side sleepers.
Back Sleepers
This bed’s strong support is ideal for back sleepers because it helps keep the spine neutrally aligned.
Stomach Sleepers
This mattress is ideal for stomach sleepers as its firm support promotes spinal alignment.
Financing Options
Financing options are available for this mattress.
Who Should Pick the AS4
- People who are lighter in weight and don’t need as much support
- Those who sleep almost exclusively on their side

Amerisleep AS4 Mattress

The Amerisleep AS4 is one of the brand’s softest models and should be a great fit for side sleepers.
Product Details
Material
Foam
Firmness
Soft: 6/10
Sleep Trial
100 nights
Warranty
20-year warranty
Shipping
Free shipping minus HI and AK
Price
$$$$$
Our Recommendation
We recommend this mattress for the following sleeper types:
Side Sleepers
This bed offers pressure relief at both the shoulders and hips, making it a great fit for side sleepers.
Back Sleepers
This bed’s strong support is ideal for back sleepers because it helps keep the spine neutrally aligned.
Financing Options
Financing options are available for this mattress.