Amerisleep is known for their wide selection of mattresses from soft, firm, and everything in between. The AS5 Amerisleep mattress is the softest of the bunch, and they call it their most luxurious option. This is because it’s the thickest, the most plush, and as a result, the most expensive. We think this bed will appeal most to strict side sleepers or folks who want a very soft, very dense memory foam feel. If that sounds like something you’re interested in, keep reading below.

Amerisleep AS5 Mattress Firmness and Feel

The AS5 mattress from Amerisleep, opposed to the other models, is four layers thick. That means it uses the most foam from all the Amerisleep mattresses. As such, the bed feels like very dense memory foam. In fact, it reminds us of the Nectar mattress or TempurPedic. With that said, it doesn’t give you that “stuck” feeling that some memory foam beds do, so it’s much easier to switch positions.

Amerisleep AS5 Construction and Design
The AS5 Amerisleep mattress is the thickest of the bunch and incorporates the most layers. In total, this hefty foam bed 14” thick. It’s also available in hybrid construction, where the bottom foam layer is replaced with a supportive pocketed coil base.
- Bio-Core Foam —This layer is in every Amerisleep mattress, and it serves as the foundation for the rest of the bed. Essentially, all it is is dense, firm poly foam.
- Affinity Transition Poly Foam — A softer foam than the one below to help neutralize the firm feel.
- Active Flex Layer — This layer is specific to the AS5 and is meant to provide additional cushion and plushness.
- Bio-Pur Memory Foam — All Amerisleep beds, including the AS5 mattress, include a comfort layer made with Bio-Pur memory foam. It has an open-celled structure you can see above that makes it better at promoting airflow than your traditional memory foam mattress.
Sleeper Type Analysis
Everyone has their own way of sleeping, and you typically have one or two dominant sleeping positions, whether it be back, side, stomach, or a combination. The Amerisleep is a comfortable bed, but it’s not perfect for everyone.
Body Type Analysis
Your weight and the amount of pressure you put onto a mattress matters. Here’s how we’d recommend the AS5 mattress according to the different body types.
Will Amerisleep Beds Work For Couples?
If you share a mattress with your significant other, we suggest you consider a bed’s edge support and motion isolation capabilities, especially if your partner is an avid middle-of-the-night-waker-upper.
Motion Isolation And Noise
After testing the AS5 mattress for motion isolation using our trusty water glass test, we found that it didn’t spill or shake when we rolled around on the mattress. The memory foam is great at absorbing motion, and the bed makes no noise.
Edge Support
This is especially important if you plan on sharing a full or queen size mattress. How supportive is the bed’s perimeter? The AS5 hybrid is definitely better at this than the foam model, but the foam model is average for a memory foam bed.
Amerisleep Pricing & Coupon Code
The softer beds in the Amerisleep mattress get steeper and steeper in price, and this is the softest mattress they offer. A queen size Amerisleep AS5 mattress retails for around $2,500, but they often run discounts that’ll take that price down $800 or more.
Amerisleep Review Verdict
Now that we’ve reached the finale of our Amerisleep mattress review, here’s a wrap-up of our final thoughts. It’s best for side sleepers who want a very soft mattress, and it’s all the way to the soft end of our firmness scale. The foam AS5 is also more accommodating for petite to average-weighted individuals, while the AS5 hybrid is perfect for heavy sleepers or average-weighted sleepers looking for additional support. If you don’t end up liking your bed, you always have their risk-free trial to fall back on.
Why Trust Us
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The Review Team
That depends who’s asking! It’s good for people who want an extra soft mattress, like side sleepers. Also, it’s best for people who enjoy memory foam.
It’s one of the more expensive beds in the Amerisleep mattress lineup, as a queen size AS5 retails around $2,500. Though, expect the price to be lower by $400 plus with discounts.
Yes, Amerisleep offers a 100-night trial to ensure you’re happy with your buy before you have to commit.
Yes! We would just recommend the AS5 hybrid over the all-foam model.
Amerisleep Company Policies
You don’t get the privilege to touch and feel a mattress through the computer screen when you buy online, so they offer a few extra perks to make it more worthwhile.
- Free shipping and returns
- 100-Night risk-free trial period
- 20-year warranty