Amerisleep AS3 Hybrid Mattress Review – A Great Balance Of Comfort And Support?

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As a company, Amerisleep is all about options. For years, they have offered a line of five memory foam mattresses with five different firmnesses, and they have made it easy for fans of memory foam to find the perfect mattress.

More recently, the brand released its line of hybrid mattresses. These also vary in firmness, from the extra-firm AS1 Hybrid to the super-soft AS5 Hybrid. Right in the middle, we have the Amerisleep AS3 Hybrid mattress, a comfortable hybrid that is not too firm and not too soft.

We enjoyed our experience with the original Amerisleep AS3 mattress, and we were interested to see how coils would change or improve the mattress. We’re ready to share everything we’ve learned while testing this mattress. Read on for our full Amerisleep AS3 Hybrid mattress review!

30% Off
Amerisleep AS3 Hybrid
Amerisleep AS3 Hybrid
Amerisleep AS3 Hybrid

The Amerisleep AS3 Hybrid is a medium-firm memory foam hybrid mattress with an excellent balance of comfort and support. Click the link and use code AS30 to save 30%.

Amerisleep AS3 Hybrid Mattress Overview

The Amerisleep AS3 Hybrid is a versatile hybrid mattress that will appeal to several types of sleepers, but it won’t be a fit for everyone. Because the Amerisleep brand designed this mattress to be its middle-of-the-road model when it comes to firmness, this bed won’t cater to folks who prefer their mattress to be definitively soft or firm. The Amerisleep AS3 Hybrid’s medium-firmness also dictates which sleeping positions are best matched to this bed. Here’s a quick look at who’s most likely to enjoy sleeping on this bed and who might want to continue their mattress search.

Who Might Like The Amerisleep AS3 Hybrid?

  • People who enjoy sleeping on a medium-firm mattress
  • Combination sleepers who need a mattress that offers comfort and support in multiple positions
  • Fans of memory foam who don’t want to sleep hot or get stuck

Who Might Not Like The Amerisleep AS3 Hybrid?

  • People who want an extra-firm or extra-soft mattress
  • Stomach sleepers, who probably won’t get enough support on this mattress
  • Strict side sleepers, who might not obtain enough pressure relief to stay comfortable all night long
  • Fans of a conventional, slow-moving memory foam feel

To learn more about the other Amerisleep models, check out our detailed Amerisleep mattress guide.

Amerisleep AS3 Hybrid Mattress Video Review

Want to take the Amerisleep AS3 Hybrid mattress for a test drive (or, er, sleep)? Do so vicariously from the comfort of your home with our in-depth video review! Our reviewer, Joe, will assess each layer of this bed’s construction and share his experiences with sleeping in all positions on this mattress.

Amerisleep AS3 Hybrid Mattress Firmness And Feel

Whenever you’re hunting for a new mattress, you can can make your search less overwhelming by zeroing in on firmness and feel. These factors tell you a lot about whether a mattress will suit your preferred sleep position(s) and other sleep needs. So without further ado, let’s kick off the in-depth portion of this review by taking a gander at the firmness and feel on the Amerisleep AS3 Hybrid!

How Firm Is The Amerisleep AS3 Hybrid?

As we’ve noted, the AS3 Hybrid is Amerisleep’s not-too-firm and not-too-soft model. So it’s not surprising that we ranked the mattress around a 6.5 out of 10 on the firmness scale, or right around average firmness. (The industry standard for average firmness is 6.5/10.) The Bio-Pur foam comfort layer is very soft, but when you push into the foam you can easily feel the firmer support layers beneath.

Sleeping On The Amerisleep AS3 Hybrid

The AS3 Hybrid has a great balance of comfort and support and thus is a perfect match for back sleeping. Our hips sank into the foam comfort layer just the right amount, and the foam provides some pleasant body contouring. Meanwhile, the zoning in the coils adds additional support under the lumbar area, which helps maintain proper spinal alignment.

We felt okay but not great while side sleeping on this mattress. The memory foam did relieve a good amount of pressure from our shoulders and hips. However, we still felt a bit of pressure, and we suspect that folks who spend all night in this position could feel jammed up around the shoulder or hip. Strict side sleepers might want to consider the softer Amerisleep AS4 or Amerisleep AS5.

Amerisleep AS3 Hybrid - Side Sleeping

We felt surprisingly well supported while stomach sleeping on this mattress. Normally, it takes a firmer mattress to keep our hips elevated and aligned with the spine. That said, anyone who spends all night on their stomach might want to select one of Amerisleep’s firmer models.

What Does The Amerisleep AS3 Hybrid Feel Like?

As its name implies, the Amerisleep AS3 Hybrid mattress is a (surprise!) hybrid mattress. True to this hybrid form, the mattress creates a balance of comfort and support. The foam on top offers some body contouring, but it’s also very responsive and doesn’t have the slow-moving feel that’s common with memory foam. Thanks to the responsive foam and bouncy coils, it’s very easy to move around on top of this bed.

Average Weight Sleepers – 130lbs – 230lbs

Average-weight back sleepers should enjoy a pleasant balance of comfort and support on the Amerisleep AS3 Hybrid. Average-weight side sleepers who only spend part of the night in this position could obtain enough pressure relief, but strict side sleepers will probably want to seek out a dedicated mattress for side sleepers. The Amerisleep AS3 Hybrid could feel supportive enough for some average-weight stomach sleepers (particularly those who are on the lighter end of the weight spectrum), but in general stomach sleepers might want to seek out a more supportive mattress.

Heavyweight Weight Sleepers – Over 230lbs

Heavyweight back sleepers should obtain adequate spinal support on the Amerisleep AS3 Hybrid, thanks in part to its zoned coils. Heavyweight side sleepers are likely to experience pressure around the shoulder and hip, because they could press through the softer layers into the firmer support layers underneath. The Amerisleep AS3 Hybrid is probably not supportive enough for heavyweight stomach sleepers, who will fare better on a more supportive mattress for heavy people.

Lightweight Sleepers – Under 130lbs

Lightweight back sleepers should enjoy a touch of pressure relief along with plenty of spinal support. Some lightweight side sleepers might obtain adequate pressure relief on the Amerisleep AS3 Hybrid, but in general strict side sleepers will probably want to look for a softer mattress. Lightweight stomach sleepers will probably feel well-supported on this mattress.

RELATED: Best Mattress For Back Sleepers 2021

Amerisleep AS3 Hybrid Mattress Construction

Now that you have a sense of what it’s like to lie on top of the Amerisleep AS3 Hybrid mattress, let’s take a look at what’s inside of it! We’ll assess this bed’s construction layer by layer and share how different materials impact performance.


The Amerisleep AS3 Hybrid’s cover is soft and breathable. It’s woven with a material called Celliant, which could assist with cooling, blood flow, and muscle recovery during sleep.

Comfort Layer

The primary comfort layer on the Amerisleep AS3 hybrid is made from 3″ of proprietary Bio-Pur foam, a plant-based material that’s responsive, open-celled, and more breathable than conventional memory foam. This layer offers a touch of pressure relief while remaining very responsive. It’s also CertiPUR-US certified, which means it’s low in volatile organic compounds (VOCs).

Amerisleep AS3 Hybrid - Construction And Layers

Support Layers

Underneath the Bio-Pur foam comfort layer, the Amerisleep AS3 Hybrid sports a primary support layer made from zoned, pocketed coils. These coils provide overall structure, bounce, and support, while the zoning offers sleepers additional lumbar support by making the center of the mattress a bit firmer than the rest. A foam encasement surrounds the coils and helps beef up the mattress’s edge support. Underneath the coils, there’s a base layer made from high-density, foundational foam.

Mattress Height

The Amerisleep AS3 Hybrid mattress stands at 12″ tall.

Amerisleep AS3 Hybrid Mattress Size Options and Price

To see the most up-to-date size and pricing info for the Amerisleep AS3 mattress, check out the charts below!

Size Dimensions Price
Twin 38″ x 74″ x 12″ $1549
Twin XL 38″ x 80″ x 12″ $1599
Full 54″ x 75″ x 12″ $1799
Queen 60″ x 80″ x 12″ $1999
King 76″ x 80″ x 12″ $1899
California King 72″ x 84″ x 12″ $2424
Split King 38″ x 80″ x 12″ (x2) $3198
30% Off
Amerisleep AS3 Hybrid
Amerisleep AS3 Hybrid
Amerisleep AS3 Hybrid

The Amerisleep AS3 Hybrid is a medium-firm memory foam hybrid mattress with an excellent balance of comfort and support. Click the link and use code AS30 to save 30%.

Amerisleep AS3 Hybrid Mattress Performance

By this point in the review, you know a lot about the Amerisleep AS3 Hybrid mattress. But before you decide whether this is the best mattress for you, it’s important to consider a few more factors. We put this bed through a barrage of tests to assess its performance with regards to temperature regulation, motion transfer, edge support, and more. Let’s see how it did!

Sleeping Hot Or Cold

The Amerisleep AS3 Hybrid mattress has several design features that help it sleep cooler: The cover is breathable; the open-celled Bio-Pur foam allows for more airflow than conventional foams; and the coils allow for plenty of airflow throughout the center of the mattress. You shouldn’t have to worry about overheating on this mattress. See our best cooling mattresses for more like the Amerisleep AS3 Hybrid.

Motion Transfer

Foam generally does a good job of minimizing motion transfer on a mattress, so we expected that the Bio-Pur foam comfort layer on the Amerisleep AS3 Hybrid would help cut down on disturbances. Based on our tests, this mattress fully lived up to our expectations. Even though it’s a responsive mattress, it does a great job of limiting motion transfer. Partners shouldn’t disturb each other much in the night, and this should be a good mattress for couples.

Edge Support

We were impressed with the edge support on the Amerisleep AS3 Hybrid mattress. It incorporates strong coils and a foam encasement, which together helped us feel secure while sitting and lying down near the edges of this mattress.

Amerisleep AS3 Hybrid - Edge Support


Thanks to its sturdy coils and high-quality foams, the Amerisleep AS3 Hybrid is a fairly durable mattress. This durability is reflected in the mattress’s generous warranty.


We observed just a touch of initial off-gassing from the Amerisleep AS3 Hybrid. This should dissipate within 24 to 48 hours.


At the time of this review, we didn’t observe any notable noise from the Amerisleep AS3 Hybrid. That said, because this mattress incorporates coils, it’s possible they could start to squeak a bit as time goes on.


When people seek out a mattress for sex, they’re generally concerned with whether it will be easy to change positions on the mattress. Based on that criterion, the Amerisleep AS3 Hybrid could be a good fit. It’s a very responsive mattress, and partners should find that it’s easy to move around.

Our Amerisleep AS3 Hybrid Mattress Ratings

Want to see the final tally? We’ve got the Amerisleep AS3 Hybrid’s test scores right here:


Amerisleep AS3 Hybrid Mattress
4 Overall
Edge Support
Motion Transfer
Trial Period

Company Policies

Here’s a quick look at the company policies that you can expect to encounter if you choose to purchase the Amerisleep AS3 Hybrid mattress.

Warranty Info

The Amerisleep AS3 Hybrid mattress boasts a generous 20-year warranty.

Sleep Trial

The Amerisleep AS3 Hybrid comes with a 100-night sleep trial.

Return Policy

This mattress comes with free shipping and returns. Refer to the Amerisleep site for additional return information.

How Does The Amerisleep AS3 Hybrid Compare To Other Mattresses?

It’s always a good idea to do some comparison shopping when you’re looking for a new mattress. Let’s see how the Amerisleep AS3 Hybrid compares to other mattresses.

Amerisleep AS3 Hybrid vs. Amerisleep AS3

The Amerisleep AS3 Hybrid and Amerisleep obviously come from the same company, and they are also right in the middle of the Amerisleep firmness range. The main difference is found in their support layers. The AS3 Hybrid features coils while the Amerisleep AS3 features support foam.

Amerisleep AS3 - construction and foam layers

With the addition of coils, the AS3 Hybrid is more supportive than the AS3 all-foam model. Also, the coils promote airflow through the mattress, making the AS3 Hybrid a cooler sleeping mattress. The coils do make the AS3 Hybrid cost more than the AS3, however.

Who Should Get The Amerisleep AS3 Hybrid? 

  • Those who need more support
  • Heavier people
  • Hot sleepers

Who Should Get The Amerisleep AS3? 

  • Average weight sleepers
  • Those who want to spend less

Read the full Amerisleep AS3 mattress review 

Amerisleep AS3 Hybrid vs. Helix Midnight

Like Amerisleep, Helix also offers a number of mattresses that range in terms of firmness. The Helix Midnight is toward the middle of the company’s firmness range. Also, like the Amerisleep AS3 Hybrid, the Helix Midnight is one of its company’s most popular models.

Helix Midnight Mattress - Construction

While these are both hybrid mattresses with supportive coils, they do have their differences. First off, they have different materials in their comfort layers. The Amerisleep AS3 Hybrid features Bio-Pur foam, and the Helix Midnight features Memory Plus foam. The Amerisleep AS3 Hybrid is a bit bouncier because of the responsive Bio-Pur foam. The Helix Midnight has more of that slow-moving feel on top.

Speaking of price, the Amerisleep AS3 Hybrid costs more than the Helix Midnight.

Who Should Get The Amerisleep AS3 Hybrid? 

  • Those who like something more responsive

Who Should Get The Helix Midnight?

  • Those who prefer a slow-moving feel
  • Those who want to spend less on their mattress

Read the full Helix Midnight mattress review 

For more information on the Amerisleep brand, make sure to look at our other Amerisleep mattress comparisons such as Amerisleep vs. Saatva and Helix vs. Amerisleep.

Amerisleep AS3 Hybrid FAQs

Now we’d like to answer some of the most frequently asked questions regarding the Amerisleep AS3 Hybrid.

How long will the Amerisleep AS3 Hybrid mattress last?

Of course, the life of any mattress will depend on the size of the owner and how much the individual uses it. However, based on the materials and construction of the Amerisleep AS3 Hybrid, it should last for between seven and eight years.

Will the Amerisleep AS3 Hybrid mattress sleep cool?

The Amerisleep AS3 Hybrid should be a cooler-sleeping mattress. Its Celliant cover will help dissipate body heat, and its Bio-Pur foam is quite breathable. The coils will also promote airflow through the mattress so that it does not trap too much heat.

Which is better, an Amerisleep memory foam mattress or an Amerisleep hybrid mattress?

Neither model of mattress is necessarily better than the other, and it depends on what shoppers are looking for.

Those who want to save money and also sink more into their mattress will prefer the Amerisleep memory foam mattresses. Those who need more support and don’t want to sink so far into their mattress will prefer an Amerisleep hybrid mattress.

Joe Auer is the editor of Mattress Clarity. He mainly focuses on mattress reviews and oversees the content across the site.

He likes things simple and take a straightforward, objective approach to his reviews. Joe has personally tested nearly 250 mattresses and always recommends people do their research before buying a new bed. He has been testing mattresses for over 5 years now, so he knows a thing or two when it comes to mattress selection. He has been cited as an authority in the industry by a number of large publications.

Joe has an undergraduate degree from Wake Forest University and an MBA from Columbia University.