AS5 mattress

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Amerisleep AS5 Mattress Review

See our full review of the AS5 to learn if this could be the right mattress for you.

Customer Rating 4.7/5
Customer Experience Score 8.4/10

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The Amerisleep AS5 is one of the five memory foam mattresses in the collection of memory foam mattresses by Amerisleep. This model is the softest of all five models, but it still has responsive properties so you don’t sink into the bed and get stuck. This bed is a good match for side sleepers looking for a comfortable, contouring bed that balances with enough support to maintain proper spine alignment.

Keep reading our in-depth Amerisleep AS5 mattress review to learn more about how this mattress performs and can bring you a better night’s sleep.

Amerisleep AS5 Mattress Highlights

  • The AS5 is Amerisleep’s softest mattress model and is ideal for side sleepers and combination sleepers.
  • Its foam comfort layers create a soft but responsive feel that relieves pressure points and makes you feel like you’re floating.
  • In addition, the cover contains Celliant, which is known to reduce pain, regulate body temperature, and promote healthy blood circulation.

AS5 Mattress Review

The Amerisleep AS5 is the softest of their memory foam mattresses. It’s built with multiple layers of plush, absorbing foam that’s more than 12″ deep! These foams include Amerisleep’s proprietary, cooling Bio-Pur®, Active Flex, and HIVE® comfort layers. Combined together, these foams create a mattress that is plush yet responsive.

Some people prefer a more firm bed. Others (like most of us out there) prefer for their bed to feel like a comfortable cloud that you can peacefully drift off to sleep on. That’s what you’ll get with the AS5.

Amerisleep AS5 mattress

What does all this mean? 

It means that when you’re sleeping on the AS5, not only are you ultra-comfortable from the soft surface, but you also are getting the pressure relieving support you need to avoid pain in the hips, shoulders, and knees. This bed can make you feel like you’re floating!

Top that all off with the high-performance Celliant® cover and you’re practically guaranteed a good night’s sleep. This thermoreactive cover is designed to turn your body heat into infrared energy, meaning you’ll sleep cool all night long.

Amerisleep AS5 Testing Scores

Check out our score breakdown for our overall rating of the AS5 mattress. Our lab scores are still pending, but until then, you can see our customer experience ratings.

You can learn more about our review process here.

Mattress Advisor Test Score (Out of 10)
Shipping 8
Trial Period 9
Return Policy 10
Warranty 10
Set-Up 9.5
Motion Transfer Pending
Edge Support Pending
Pressure Relief Pending
Spine Alignment Pending
Responsiveness Pending
Cooling Pending
Durability Pending
Customer Service 9
Social Impact 4
⭐Total Customer Experience Score for the Amerisleep AS5 Mattress: 8.4⭐

Customers Reviews of the AS5

“I have purchased the most expensive beds on the market and I would choose this over any of them that I have owned.” – Leigh

“I compared every mattress made for over TWO weeks. I just wanted to get this right. It is everything i hoped it would be. I was really hesitant about the AS5 being too soft but it is not. It is perfect. I have a really bad back. My wife is a full time back sleeper. We are both thrilled to death. We have been sleeping on this bed now for 5 weeks. It is unreal. I have also slept on a purple and it does not compare to this AS5. WOW, WOW, WOW.” – Marty

“We have two twin XL mattresses in a king frame. They are amazingly comfortable, and allow for each of us to move independently without waking the other person up. We are very happy with our new purchase. It is great in terms of temperature and responsiveness. No smell, and easy to set up as well. The best part of all of this, is that they have the top customer service in the industry. I accidentally ordered the wrong size and they straightened it out and issued a refund, donating the wrong mattress as well. And they did this all pleasantly and quickly. Absolutely amazed. We will never buy from anyone else again. Great experience.” – Teri

Read more reviews here.

Product Information


104 lbs.




Soft: 3/10


Memory Foam

American Made

Made in the USA

Compatible Foundations

Amerisleep recommends a flat surface for the AS5. You can use a flat or slatted frame, box spring with plywood, adjustable base or even set it on the floor.

What’s Inside the AS5?

The layers inside the Amerisleep AS5 are described as they appear from top to bottom.

Inside the Amerisleep AS5
  • High-performance Celliant cover: Designed to convert your body heat into infrared
  • Bio-Pur foam: Breathable cooling layer with open-cell structure
  • Active Flex foam: Responsive comfort foam
  • Affinity layer: Ergonomic transition foam; provides pressure relief
  • Bio-Core foam support layer: Eco-friendly durability and support

Purchasing Information

Purchase Experience

Policy Details
Delivery Compressed and rolled in a box that is 19” x 19” x 42” for a queen
Trial Period 100 days
Warranty 20-year limited warranty
Return Policy Full refund on returns within 100-day trial period
Financing Not available

Sizes and Pricing

Size Dimensions Standard Price*
Twin 38″ x 74″ $1,799
Twin XL 38” x 80” $1,849
Full 54” x 75” $1,949
Queen 60” x 80” $2,099
King 76” x 80” $2,299
Split King 38″ x 80″ (x2) $3,498
Cal King 72” x 84” $2,299

*Prices listed are standard without sales or Mattress Advisor exclusive discounts. Check price using the button below for the best deals on the AS5 mattress.

White bedding sheets and pillow in white room background. Messy bed concept in morning time.

Compare the AS5

Shopping around? Compare the AS5 to your other mattress options with our comparison tool.

Compare the AS5


How does the 100-day trial work?

Once you receive your mattress, you have 100 days to decide if you want to return it for a full refund or exchange it for another model. Keep in mind that it can take up to 30 days to adjust to a new mattress so you may want to take some time before making any decision.

Does the AS5 sleep hot since it's made with memory foam?

No – the AS5 is designed to sleep cool. The foams are breathable, plus the Celliant cover helps wick away body heat. Of course, the more thick bedding and pajamas you bring into bed could have an effect on your body temperature.

Where can I learn more about all of Amerisleep's mattresses?

You can check out our Amerisleep brand overview to learn more about the brand and compare all of their mattress models.

By clicking on the product links in this article, Mattress Advisor may receive a commission fee at no cost to you, the reader. Read full disclosure statement.

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