Purple Vs Amerisleep – Which Should You Choose?

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Trying to decide between the Amerisleep and the Purple? Both are great mattresses. The Amerisleep features several models for all kinds of sleepers, while the Purple boasts one of the most unique feels around.

So how do you choose between these two high-quality mattresses? By reading this comparison! We’ll pit the Purple Original mattress and the Amerisleep AS3 head-to-head to see how these mattresses stack up. By the end of this comparison, you should have a clear sense of which mattress is best for you.

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  • Offers a completely temperature-neutral sleeping surface
  • Has a bouncy, more responsive feel which makes it very easy to switch positions

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  • Click the button and use code MC30 to save 30% on an Amerisleep mattress
  • Many firmness options to select from 
  • The mattresses feature a classic memory foam feel

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Purple Vs Amerisleep Mattress Overview

To kick things off, here’s a quick overview of who might prefer the Purple versus the Amerisleep AS3.

Who Should Get The Purple?

Who Should Get The Amerisleep?

  • Lightweight sleepers
  • Folks who want multiple firmness options (While we’re talking exclusively about the Amerisleep AS3 in this comparison, the line includes four other models in different firmnesses)
  • People who want a mattress with a foam feel

Purple Vs Amerisleep Mattress Video Comparison

Get up-close-and-personal with the original Purple and the Amerisleep AS3 in our in-depth video review! Our reviewer, Marten, will assess each bed’s construction and share his experiences with sleeping in all positions on each mattress.


Similarities Between The Purple And Amerisleep?

While the Purple and Amerisleep AS3 differ dramatically in terms of construction and feel, they do have a few things in common.

  • They are both popular online mattresses
  • Both come with good customer service terms
  • They have similar base layers
  • In our experience, the Purple and the Amerisleep AS3 are the same in terms of firmness

Purple Original Mattress Review

RELATED: Purple Mattress Review

Key Differences Between The Purple And Amerisleep?

Overall, the original Purple and the Amerisleep AS3 are very distinct mattresses. Here are just some of the ways in which these beds differ.

  • The Amerisleep AS3 is thicker than the Purple
  • The mattresses feature different materials in their comfort layers: The Amerisleep AS3 uses Bio-Pur foam, while the Purple features a hyper-elastic gel polymer
  • The Amerisleep AS3 has zoning, while the Purple does not
  • These mattresses differ significantly in terms of feel
  • The Purple is more breathable than the Amerisleep
  • The Purple costs less than the mattresses in the Amerisleep line

Amerisleep Mattress Review

Firmness And Feel Differences (Including Firmness Rating)

If you’re hunting for a new mattress, then firmness and feel should be at the top of your list of considerations. These factors will play a major role in determining whether a given mattress is matched to your sleep preferences. So let’s get into the meat of this comparison by taking a look at the firmness and feel on the original Purple and the Amerisleep AS3!

How Firm Are The Amerisleep And Purple Mattresses?

We ranked both the Amerisleep AS3 and the original Purple mattress around a 6.5/10 on the firmness scale. The industry standard for medium firmness is 6.5/10, so this suggests both mattresses are right around medium firm. Again, note that the Amerisleep line includes four other models in different firmnesses.

It’s also important to note that firmness is a bit subjective. A person’s body weight will influence how firm or soft they perceive a mattress to be, so just be aware that these ratings aren’t an exact science.

Sleeping On The Amerisleep And Purple Mattresses

We got to spend a good amount of time on both mattresses. We rolled around and tried them out in every sleeping position:


We felt fantastic while back sleeping on the Purple. The Purple Grid collapsed a bit under our butt for some pressure relief and stayed upright everywhere else to support spinal alignment.

While side sleeping on the Purple, we activated the gel grid so that it collapsed under the shoulder and hip to provide cradling relief. However, note that lighter-weight side sleepers might not activate the grid and could find the bed to be too firm in this position.

Purple Original Mattress - Side Sleeping

We enjoyed plenty of support while stomach sleeping on the Purple. The gel grid kept our hips elevated and in line with the spine.


We felt great while back sleeping on the Amerisleep AS3. The Bio-Pur foam provided a touch of pressure relief without sacrificing spinal support.

Amerisleep AS3 - Back Sleeping

We also felt decent while sleeping on our side, as the Bio-Pur foam offered some body contouring around the shoulder and hip. That said, heavier-weight people or people who prefer a plusher feel will find greater pressure relief on the softer Amerisleep AS4 or AS5.

We found the Amerisleep AS3 to be too soft for stomach sleeping. People who spend all night in this position will probably want to seek out a firmer mattress, such as the Amerisleep AS1.

What Do The Purple And Amerisleep Mattresses Feel Like?

The Amerisleep AS3 features some memory foam, so it has a slightly slow-moving feel. That said, we didn’t feel stuck in this bed. It’s not especially bouncy, but it’s still pretty easy to move around on top.

The original Purple mattress has a unique feel that is simultaneously squishy and firm. That’s thanks to the gel grid, which collapses when enough pressure is applied (for pressure relief) and stays upright everywhere else (for support). This grid is bouncy and responsive.

Average Weight Sleepers – 130 lbs – 230 lbs

Most average-weight back sleepers should find a pleasant balance of comfort and support on the Purple. However, note that folks who weigh closer to 130 pounds might find that the mattress feels too firm while back sleeping as well as side sleeping. People who weigh more than 200 pounds are likely to enjoy the Purple while side sleeping, because they’ll be heavy enough to collapse the gel grid around their pressure points and enjoy pressure relief. The Purple’s supportive nature should make it a great match for average-weight stomach sleepers.

The Amerisleep AS3 should offer a nice balance of comfort and support to average-weight back sleepers. Side sleepers who weigh less than 200 pounds will probably enjoy more pressure relief on the Amerisleep AS3 than they would on the Purple. Because it’s more body contouring, the Amerisleep AS3 might not be supportive enough for average-weight stomach sleepers.

Heavyweight Sleepers – Over 230 lbs

The Purple could be a great match for heavyweight sleepers of all stripes. Heavyweight back sleepers are likely to enjoy a mixture of spinal support and pressure relief, while heavyweight side sleepers will collapse the gel grid to enjoy cradling support around the shoulder and hip. (Folks who weigh more than 300 pounds will enjoy even more pressure relief on the Purple Hybrid Premier.) Many heavyweight stomach sleepers will find adequate support on the Purple, but folks who weigh more than 300 pounds might want to look for a more supportive mattress overall.

The Amerisleep AS3 should offer heavyweight back sleepers a balance of comfort and support. Heavyweight side sleepers will probably prefer the weightless feeling that they’ll find on the Purple; they could press through the Amerisleep AS3’s comfort layer and into the firmer support layer underneath, making the mattress feel too firm in this position. The Amerisleep AS3 is not supportive enough for heavyweight stomach sleepers.

Lightweight Sleepers – Under 130 lbs

Lightweight back and side sleepers will probably find that the Purple feels too firm in these positions, because they won’t be heavy enough to collapse the gel grid and activate pressure relief. The supportive nature of the Purple should be well-matched to lightweight stomach sleepers.

The Amerisleep AS3 should be a better match for lightweight sleepers overall. It offers comfort and support while back sleeping and pressure relief while side sleeping. However, it might not be supportive enough for lightweight stomach sleepers.

Mattress Construction Differences

Now that you know what it feels like to sleep on top of the Amerisleep AS3 and original Purple mattresses, let’s take a look beneath the surface. We’ll compare each layer of these mattresses’ constructions and assess how different materials influence performance.


The Purple is encased in a SoftFlex cover that is thin, breathable, and flexible enough to move with the mattress’ gel grid.

The Amerisleep AS3 features a soft and breathable cover that allows air to flow through the mattress.

Comfort Layers

The original Purple’s primary comfort layer consists of 2” of the brand’s proprietary Purple Grid. The grid is made from a hyper-elastic gel polymer that remains firm and supportive until enough pressure is applied in a specific area, at which point the grid collapses for some pressure relief. A strong foam layer encases the edges of the Purple Grid to strengthen the mattress’s edge support. Below the Purple Grid, there’s a layer of soft, responsive foam that adds some pressure relief to the top of the mattress.

Purple Mattress - Construction And Layers

The Amerisleep AS3’s top comfort layer is made from 3” of Bio-Pur foaman open-celled foam that is more breathable and bouncier than conventional memory foam. The added bounce means that sleepers shouldn’t feel stuck in this bed. Each model in the Amerisleep mattress line has different amounts of Bio-Pur foam; the AS1 is the thinnest, while the AS5 has the most. Beneath the Bio-Pur foam layer, there’s a HIVE Transition layer with a zoned construction that subtly modulates the firmness of the mattress so it’s softer in some areas and firmer in others.

Amerisleep AS3 - construction and foam layers

Support Layer

The Purple’s support layer consists of a firm base foam that provides overall structure and support for the mattress.

The Amerisleep AS3’s support layer is made from a Bio-Core foam base layer that is high-density and supportive.

Mattress Height

The Amerisleep AS3 is 12″ thick, while the Purple is shorter at 9.5″.

Purple And Amerisleep Mattress Size Options And Price

To see the most up-to-date size and pricing information for the Amerisleep AS3 and the original Purple mattresses, check out the charts below.


Size Dimensions Price
Twin 38″ x 75″ x 9.5″ $649
Twin XL 38″ x 80″ x 9.5″ $749
Full 54″ x 76″ x 9.5″ $949
Queen 60″ x 80″ x 9.5″ $1099
King 76″ x 80″ x 9.5″ $1399
California King 72″ x 84″ x 9.5″ $1399
Split King 76″ x 80″ x 9.5″ $1498

Amerisleep AS3

Size Dimensions Price
Twin 38″ x 74″ x 12″ $1149
Twin XL 38″ x 80″ x 12″ $1199
Full 54″ x 75″ x 12″ $1349
Queen 60″ x 80″ x 12″ $1499
King 76″ x 80″ x 12″ $1899
California King 72″ x 84″ x 12″ $1899
Split King 38″ x 80″ x 12″ (x2) $2398

Purple And Amerisleep Performance Differences

We’re almost to the end of this review, but there are a few more critical performance indicators to assess! We tested the Amerisleep AS3 and Purple with regards to temperature regulation, motion transfer, edge support, and more. To see how these two models compare to other brands, check out our mattress comparisons page for other popular comparisons like Purple vs Saatva and Amerisleep vs Casper.

Sleeping Hot Or Cold

The Purple is the winner here. Its breathable cover and temperature-neutral gel grid mean that this mattress shouldn’t overheat.

Motion Transfer

The Amerisleep AS3 takes the win. Its thick foam comfort layer does a decent job of absorbing motion. In contrast, the Purple’s bouncy gel grid doesn’t do much to minimize motion transfer. Keep this in mind if you’re searching for a mattress for couples.

Edge Support

Both mattresses boast decent edge support, but we’re giving the win to the Purple. That’s thanks to the foam encasement around the edges of the Purple Grid, which helped us feel extra secure while sitting down or lying near the mattress’s edge.

Purple Mattress - Edge Support


Both mattresses should be durable, but the Purple ekes out a win. The hyper-elastic gel polymer is an especially durable material, and this mattress shouldn’t sag.


We did observe some off-gassing from the Amerisleep AS3, but this should dissipate within a couple of days. We did not observe off-gassing from the Purple.


We called this a tie. We didn’t observe any notable noise from either mattress.


If you’re looking for a mattress for sex, that probably means you want a mattress that makes it easy to change positions. The Purple is the winner in this case, because its bouncy and responsive gel grid makes it especially easy to move around on top of the mattress.

Warranty info

The Amerisleep AS3 comes with a 100-night sleep trial and a 20-year warranty, while the Purple comes with a 100-night sleep trial and a 10-year warranty.

Gravatar for Marten Carlson

Marten Carlson

Marten is Senior Editor at Mattress Clarity. 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.