Amerisleep AS1 Mattress Review

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Amerisleep is a company that is all about offering its customers options. There are currently two Amerisleep mattress lines available – the all-foam line and the hybrid line. And, in both, lines there are five different models to choose from!

At the firmest end of their all-foam line, they have the Amerisleep AS1 mattress. It is their firmest and their most affordable as well. Is this firm all-foam mattress a good fit for you? Read on for our full Amerisleep AS1 mattress review.

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Amerisleep AS1
Amerisleep AS1
Amerisleep AS1
  • Click the button to save 30% on the Amerisleep AS1
  • The most affordable Amerisleep model
  • A firm, supportive mattress for stomach sleeping

Amerisleep AS1 Mattress Overview

The Amerisleep AS1 mattress is an all-foam mattress with just two layers. Like the other Amerisleep mattresses, it features a proprietary Bio-Pur foam that is designed to be comfortable, responsive, and breathable. This rests atop the same Bio-Core foam found in the other Amerisleep mattresses.

Because you only get a thin layer of this Bio-Core on top of the mattress, it is a firmer mattress and feels more supportive than the other Amerisleep mattresses. Keeping that in mind, it is a better fit for certain types of sleepers:

Who Might Like The Amerisleep AS1?

  • Back sleepers who need a more supportive mattress
  • Stomach sleepers who require excellent overall support
  • Fans of firm mattresses with less give

Who Might Not Like The Amerisleep AS1? 

  • Side sleepers who need pressure relief for their shoulders and hips
  • Those who prefer a mattress with a slow-moving memory foam feel
  • Sleepers who want a softer mattress with more give

See our Amerisleep mattress comparisons to see how stacks up against its competitors!

Amerisleep AS1 Mattress Firmness And Feel

When I review a mattress, I usually start by looking at its firmness and feel. These are two of the major things you should consider when shopping for a mattress, so let’s see if the Amerisleep AS1 will be a good match.

How Firm Is The Amerisleep AS1 Mattress?

In our experience, the Amerisleep AS1 is firmer-than-average and scores an 8/10 on our firmness scale. With only a thin layer of Bio-Pur foam on top, we are mostly feeling the firm support of the Bio-Core foam in the base layer.

Sleeping On The Amerisleep AS1 Mattress

While the Amerisleep AS1 is a firmer mattress, we found it to be a decent match for back sleeping. Our hips go right through the top Bio-Fur layer and even press into the base layer beneath. As we will discuss below, this experience might be different if you are a lightweight back sleeper.

Amerisleep AS1 - Back Sleeping

Side sleeping, the Amerisleep is much too firm for us, and we are feeling some significant pressure and bunching up around our shoulders and hips. This is unsurprising as the AS1 isn’t made with side sleepers in mind, and you can look at the Amerisleep AS4 or AS5 if you do sleep on your side.

When we are stomach sleeping on the Amerisleep AS1, the mattress really shines. The mattress prevents our hips from sinking too far into the mattress, and we feel nice even support across the rest of our bodies.

What Does The Amerisleep AS1 Mattress Feel Like?

Overall, the Amerisleep AS1 has more of a balanced foam feel. The Bio-Pur foam is soft and allows you to sink in a bit, but it is bouncy and responsive as well. It will make it very easy for you to move around on the Amerisleep AS1 mattress.

Average Weight Sleepers – 130 lbs – 130 lbs

Average weight back sleepers who are close to 130 lbs might think the Amerisleep AS1 is too firm for them. Their hips won’t sink in far enough, and they could feel like they are being pushed out of the mattress. However, back sleepers who are closer to 230 lbs might press further into the mattress, and they might get the balance of comfort and support they require.

Side sleeping, average weight people will most likely feel too much pressure on their shoulders and hips, and they will want to opt for one of the softer Amerisleep mattresses.

Stomach sleeping, the majority of average weight people will get all the support they need. They should get great overall support, and their hips should dip down into the mattress.

RELATED: Best Mattress For Stomach Sleepers

Heavyweight Sleepers – Over 230 lbs

Many larger back sleepers might feel like the AS1 is supportive enough for them, but if they are over 300 lbs, they will want to look for a mattress with coils or more supportive materials.

Side sleeping, heavyweight people will also feel too much pressure on their shoulders and hips; they will want a softer mattress with a much thicker comfort layer to provide them with enough pressure relief.

Stomach sleeping, those who are close to 230 lbs should get enough support but, if they are much heavier, they will need a more supportive mattress overall.

Lightweight Sleepers – Under 130 lbs

Lighter people will probably feel like the Amerisleep is too firm for back sleeping – they should consider the Amerisleep AS3 if they want the best mattress for back sleeping.

Like their heavyweight and average weight counterparts, lightweight side sleepers should find the Amerisleep AS1 to be too firm for side sleeping. They should take a look at the Amerisleep AS3 or AS4, which will give them the proper amount of pressure relief.

Stomach sleeping, average weight people will get all the support they require from the Amerisleep AS1; the mattress will feel very firm to them, but that is great for stomach sleeping!

Save 30%
Amerisleep AS1
Amerisleep AS1
Amerisleep AS1
  • Click the button to save 30% on the Amerisleep AS1
  • The most affordable Amerisleep model
  • A firm, supportive mattress for stomach sleeping

Amerisleep AS1 Mattress Construction

Now, I’d like to show you exactly what is found inside the Amerisleep AS1 mattress. We will unzip the cover and discuss each layer one by one.

Cover

The Amerisleep AS1 features a soft, breathable cover that really promotes airflow through the top of the mattress. It contains Celliant, a material known for cooling and promoting blood flow as well.

Comfort Layer

Unlike the other Amerisleep mattresses, the AS1 only features one comfort layer – 2″ of Bio-Pur foam. As I mentioned above, this material is proprietary to Amerisleep and is designed to be more breathable and responsive than memory foam. It is also plant-based, making it more eco-friendly than some other types of mattress foam.

Amerisleep AS1 - Construction

Support Layer

The AS1’s support layer contains 8″ of Bio-Core foam that is firm and durable; it is also proprietary to Amerisleep and is designed to prevent sagging in the mattress for many years.

Mattress Height

The Amerisleep AS1 mattress is 10″ tall.

Amerisleep AS1 Mattress Size Options And Price

The Amerisleep AS1 is the company’s most affordable mattress. If you want to see exactly how much this mattress will cost you, take a look at the following chart:

SizeDimensionsPrice
Twin38″ x 74″ x 10″$899
Twin XL38″ x 80″ x 10″$949
Full54″ x 75″ x 10″$1149
Queen60″ x 80″ x 10″$1299
King76″ x 80″ x 10″$1599
California King72″ x 84″ x 10″$1599
Split King38″ x 80″ x 10″ (x2)$1898

Also, make sure to look at our full Amerisleep mattress review where we discuss every single model!

Amerisleep AS1 Mattress Performance

Besides firmness, feel, and construction, there are some other features to consider when shopping for a mattress. We ran the Amerisleep AS1 through numerous tests to see just how it performs with regard to cooling, motion transfer, and edge support.

Sleeping Hot Or Cold

For an all-foam mattress, the Amerisleep AS1 should not sleep extremely hot because its cooling cover and breathable foam should keep air moving through the top of the mattress. That being said, if you have real trouble sleeping hot, you might want to consider one of the Amerisleep hybrid models.

Motion Transfer

The Amerisleep AS1 mattress handles motion transfer surprisingly well – we are not seeing too much motion transfer from one side of the mattress to the other. It should be a good mattress for couples as sleeping partners shouldn’t disturb one another when they move around at night.

Edge Support

The Amerisleep AS1 features some excellent edge support, and I feel very secure when I sit and lie down near the edge. This should also make the mattress attractive to couples as it allows two sleepers to use as much of the mattress as possible.

Durability

Looking at the overall design and construction of the Amerisleep AS1, it looks like quite the durable mattress. The proprietary foams are high-density, and we don’t expect them to sag quickly.

Off-gassing

The Amerisleep AS1 is a bed in a box mattress so, yes, there was some initial off-gassing when we unboxed it. Don’t worry, this is normal for an online mattress, and the chemical smell will go away after 48 hours.

Noise

We did not notice any significant noise when we moved and rolled around on the Amerisleep AS1 mattress.

Sex

The Amerisleep AS1 could be a good mattress for sex because it is firm and responsive; you and your partner should have no trouble moving around on the mattress.

Warranty Info

The Amerisleep AS1 mattress comes with a 100-night sleep trial and a 20-year warranty.

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Marten Carlson

Marten is a staff writer for Mattress Clarity News. He covers the mattress industry as well as sleep science news. He is specifically interested in the connection between sleep and overall health.Marten has written for media publications like Consequence of Sound and received a master’s degree in Film Studies from Emory University.He comes from Franklin, Indiana, and spends all the time he can writing, directing, and acting in films. He has directed genre short films and features. His newest film, Starlets, recently premiered at the River Town Film Festival in Clinton, NJ. He also stars in the upcoming thriller, Sour Bear. His next film, At The Hop, is a hot rod actioner with a horror twist.
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