Amerisleep AS1 Mattress Review

Last Updated: April, 2023

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Amerisleep sells an extensive line of bedding, mattresses, bed bases, and pillows, with mattresses varying in construction, height, and firmness level. The AS1 is one of the company's all-foam mattresses and has the firmest feel of all Amerisleep mattresses. It features layers made of Bio-Core and Bio-Pur memory foam, Amerisleep's proprietary material designed to be more responsive and breathable than a traditional memory foam mattress. 

Below, we will analyze every aspect of the Amerisleep AS1 Mattress, from how it feels to how it's built and how it performs across various performance categories. We'll also summarize vital company policies to help sleepers decide whether or not this memory foam mattress is right for them.


The firm profile of the Amerisleep AS1 Memory Foam beds offer strict back and stomach sleepers plenty of pressure relief and support in the lower back and midsection. Plus, their open-cell structure help to reduce body heat retention, keeping hot sleepers cool.

What We Like

  • Ultra-supportive memory foam feel facilitates healthy stomach and back sleeping
  • Stylish breathable cover that promotes cooling
  • All-foam mattress design with a firm mattress feel offers light contouring

What We Don't Like

  • Great motion isolation

Amerisleep is running a sale on their mattresses, active today July 14, 2024!

Amerisleep AS1 Mattress Overview

Amerisleep AS1 review - mattress construction

Amerisleep is running a sale on their mattresses, active today July 14, 2024!

If you love the feel of traditional memory foam but are searching for a firmer mattress, the AS1 is a perfect alternative at a reasonable price. It features all the contouring properties of a memory foam bed without sacrificing support, making it the best mattress for stomach and back sleepers who need a supportive Amerisleep mattress.

Like other Amerisleep mattresses, the AS1 comes with a proprietary Bio-Pur foam specially engineered to be comfortable, breathable, and responsive. This layer lies on the supportive Bio-Core foam, also featured in the other Amerisleep models. However, since the AS1 only features one comfort layer, it's firmer and feels more supportive.

Materials and Construction

The AS1's construction greatly influences how it feels on the surface and why it performs so well for back and stomach sleepers. Let's unzip the cover and look at what is inside this memory foam mattress.

Amerisleep mattress cover

The Amerisleep AS1's Refresh Cooling Cover is one of the brand's signature features. Aside from being cool to the touch, it's made of technology that converts heat into far-infrared energy. This helps improve blood circulation and muscle recovery throughout the body. 

Comfort layer

Underneath the Refresh Cooling Cover lies a 2-inch top layer of Bio-Pur foam. This special memory foam layer offers body contouring, allowing the sleeper to sink into the surface for pressure relief. 

Unlike traditional memory foam, which has a reputation for trapping heat, Bio-Pur's large, open-cell structure allows air to flow freely throughout the mattress, preventing heat build-up. What's more, it boasts a rapid response time that helps the mattress bounce back in just seconds and relieve painful pressure points.

Support layer

The bottom layer of your Amerisleep AS1 Mattress is an 8-inch high-density Bio-Core foam. In addition to providing gentle but firm support, this high-density foam helps with spinal alignment as you sleep. It also lends structure to your mattress. Because of the thin Bio-Pur foam top layer in the comfort system and the quick transition to the support core, the base layer gives AS1 mattresses a firm feel.

All the foams in the AS1 Mattress are CertiPUR-US certified, meaning they're eco-friendly and contain natural materials. This certification also indicates that the Amerisleep AS1 Mattress underwent testing and has met the standards for durability and low VOC (volatile organic compound) emissions. 

Mattress Feel and Firmness

When shopping for a new bed, it's crucial to consider a mattress' firmness and feel. These elements significantly impact whether the mattress will feel comfortable for different types of sleepers.

How Firm Is the AS1 Mattress?

The Amerisleep AS1 Mattress is slightly firmer-than-average, falling around an 8 on the firmness scale. With only a 2-inch thin comfort layer, you'll mostly feel Bio-Core foam's firm support in the base layer. 

Remember, the firmness scale can differ from one individual to the other. Some heavyweight sleepers might find the bed softer as they exert pressure on the layers, while lighter individuals may think this bed feels firmer.

What Does the Amerisleep AS1 Mattress Feel Like?

The AS1 Mattress boasts a balanced foam feel that's comfortable, supportive, and responsive. The Bio-Pur and the Bio-Core foam layers make the sleep surface feel firmer around the hips and slightly softer around the legs and shoulders. Heavyweight sleepers (over 230 pounds) should feel like the mattress is supportive enough for their needs, while lightweight sleepers (under 130 pounds) may want to opt for a softer mattress, such as the Amerisleep AS3 and the AS4 bed. These soft models will give them the right amount of pressure relief. 

Amerisleep AS1 Mattress Performance Ratings

Beyond mattress firmness, feel, and design, how does the Amerisleep AS1 Mattress stack up? Let's review this firm memory foam mattress and how it performs with regard to motion transfer, cooling, edge support, and other features.


The AS1 is a durable mattress thanks to its high-quality materials. Its Bio-Core base layer gives it shape and durable support for decades. So, you shouldn't expect it to sag or develop soft spots quickly.

Pressure Relief

Generally, pressure relief in a mattress allows users to sink in the surface proportionately for proper spinal alignment. The AS1 conforms to the unique shape of back and stomach sleepers, ensuring the head, neck, back, and shoulders are evenly supported. 

Sleepers weighing less than 230 pounds should find that the Bio-Pur comfort layer contours perfectly to the body, offering soothing pressure relief and providing the extra support needed to give them an even surface. However, side sleepers may want a softer Amerisleep model that can cushion their painful pressure points.

Temperature Control

Many memory foam mattresses are made of materials that allow maximum airflow throughout the surface. Some also wick away excess moisture from the sleeper's body to keep them cool. 

The AS1 has a cool-to-the-touch Refresh Cooling Cover designed to wick away body moisture. The Bio-Pur comfort layer features an open-cell design, perfect for regulating temperature during the night. As a result, it offers better body temperature regulation than similar all-foam mattress models on the market.

Motion Isolation

Motion isolation refers to how well your mattress prevents body movements from transferring from one part of the bed to another. Memory foam mattresses are often preferred by couples who want to reduce motion transfer. 

The Amerisleep AS1 Mattress offers top-notch motion isolation. The foam layers are made perfectly to prevent sleepers from disturbing each other at night when changing positions and getting in and out of bed. 

Edge Support

Because of the way all-foam mattresses are constructed, they lack the perimeter firmness of coil support layers to offer solid edge support. Sleepers are likely to sink into the surface when they sit on the edges of the mattress or have a sensation of rolling off the surface if they get too close to the edges of the bed while sleeping.

 Unlike these foam mattresses, the AS1 features excellent edge support, so sleepers should feel secure when sitting near the edge. This makes it ideal for couples as it allows those who share their Amerisleep beds to use as much of the sleep surface as possible. 


Memory foam mattresses aren't a favorite option for sex among most sleepers. This is because they aren't as bouncy and responsive as innerspring or hybrid mattresses. 

However, the Amerisleep AS1 is a good mattress for sex for memory foam lovers, given its firm and responsive nature. You and your partner shouldn't have trouble moving around and changing positions during intercourse. Plus, the foam construction is quiet, providing a conducive environment for sex.


All-foam beds tend to have odors when unboxed, as the foams used in construction release VOCs that have a unique smell. These compounds are harmless to most sleepers, and the odor usually dissipates within a day or two in a well-ventilated room.

The Amerisleep AS1 Memory Foam Mattress is no different, as you'll notice a slightly unpleasant odor as the mattress inflates. While it's harmless, consider letting the new mattress ventilate for about 24 hours before using it. 

Sleeping Positions and Body Weight

Amerisleep AS1 review - sleeping position

Amerisleep is running a sale on their mattresses, active today July 14, 2024!

As with most mattress purchases, there are several vital factors one needs to consider before making a purchase decision. Elements like your preferred sleeping position and body weight can help you decide whether a specific bed suits your sleep needs. 

This section will discuss the Amerisleep AS1 Mattress' performance for each sleep style and body type.

Side Sleepers

Generally, side sleeping causes the shoulders and hips to press into the sleep surface, potentially creating painful pressure points. For many side sleepers, As1's firm feel is too firm to prevent impact at painful pressure points. 

If you're a side sleeper, you may feel undue stress beneath your hips and shoulders and may find that the mattress lacks enough body cushioning to keep these sections in line with other body parts. This is most likely to occur in sleepers under 130 pounds. That said, side sleepers should consider looking at Amerisleep's AS5 or AS4 models. 

Back Sleepers

Back sleepers typically need an even balance of soothing pressure relief and support to align their spines. The AS1 Mattress is a viable pick for these sleepers, especially those weighing 130 and 230 pounds. They can benefit from the bed's firm feel while taking advantage of its Bio-Pur comfort layer's ability to cushion the lower back and reduce spinal misalignment.

Stomach Sleepers

Stomach sleepers require firm mattresses that keep their hips and abdomen from sinking deep into the mattress and exerting pressure on their neck. Like back sleepers, the AS1 is best suited to stomach sleepers of many body types. 

While it is firm enough to meet their comfort needs, it also adds a touch of conforming that helps keep the spine aligned. However, stomach sleepers with a higher body weight may do better with a hybrid bed with supportive coils or a mattress with a thick layer than the AS1's 2-inch comfort system. 

Amerisleep AS1 Mattress Company Policies

Thinking about purchasing the Amerisleep AS1 Memory Foam Mattress? First, let's go through the fine print of Amerisleep's policies. 


In addition to the Amerisleep website, the AS1 is available through online marketplaces such as Amazon. Shoppers in all 50 U.S. states can buy the mattress through the company website. 

If you live outside the States, feel free to check with the company directly and ask whether they offer services in your country. When buying through Amazon, always keep in mind that any issue, including returns, is subject to Amazon's policies and hence must be coordinated with Amazon. 

These mattresses are also sold in up to 12 branded stores in the States. You can use the online store finder on Amerisleep's website to identify the nearest showroom to your residential area. 


Amerisleep offers free ground shipping with FedEx to all addresses within the contiguous United States. Shoppers in Hawaii, Alaska, and some international addresses must pay an extra delivery charge for their items. The mattress usually arrives within 2 - 7 business days after you place your order and pay for it. 

While Amerisleep currently doesn't offer White Glove delivery services, these services may be available to individuals who buy Amerisleep AS1 beds in a set that includes adjustable bed frames. 

Sleep Trial

Amerisleep offers a 100-night sleep trial during which you can return the AS1 for free. However, the company asks that shoppers try their new Amerisleep mattresses for 30 days before they initiate a return. Amerisleep works with customers to have the returned mattress picked up and issues a full refund. 


The Amerisleep AS1 Mattress comes with a 20-year warranty covering defects in materials and craftsmanship. It's split into two parts.

During the first 10 years, Amerisleep will replace or repair a defective mattress for free. After this period, the company offers replacement, but you'll have to pay 50% of the original buying price and an extra shipping fee. 

Closing Thoughts

Overall, the Amerisleep AS1 Mattress is an affordable, firm mattress ideal for stomach and back sleepers. Its comfort system delivers the right cushion and temperature regulation for individuals who sleep hot and those who need ultimate body support without sacrificing comfort. While side sleepers and lightweight folks might find this memory foam mattress too firm to offer proper pressure relief, it's still a perfect, responsive option for combination sleepers and folks seeking a very firm mattress.

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