Amerisleep AS5 Mattress Review

Updated May, 2021
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While Amerisleep AS5 is a fantastic mattress at this price point, our #1 pick for 2021 is SAATVA mattress. Saatva is a luxury mattress shipped to your door (unlike other bed in a box brands dropped off on your doorstep) w/ FREE white-glove delivery & setup. They have over 50,000 5-star reviews, and they're incredibly comfortable (for all sleep positions).

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Bottom Line

The Amerisleep AS5 mattress is designed for maximum softness. It combines pressure-relieving memory foam with super-plush Active Flex. You'll sink into a sleep experience that contours to  your entire body. It uses eco-friendly, heat-wicking materials to keep you sleeping cool and comfy. Try the AS5 for 100-nights risk-free, today!

Get Amerisleep AS5 if...

  • You're a side sleeper. The Amerisleep AS5 is made with side sleepers in mind. The top two foam layers are very soft and cradling your hips and shoulders with incredible comfort.
  • You tend to sleep hot. Amerisleep's Bio-Pur® material layer features an open-cell design that allows more air to circulate than traditional foam beds.
  • You want a mattress with support. Amerisleep's construction provides targeted pressure relief to your back, hips, and shoulders, simultaneously resisting sagging.

Skip Amerisleep AS5 if...

  • If you're a stomach sleeper. The AS5 is Amerisleep's softest mattress model that stomach sleepers might find unsupportive. Instead you should consider one of Amerisleep's firmer models.
  • You prefer to sleep "on top" of your mattress. The AS5 is designed to have ultra-plush comfort, allowing you to sink into the bed and feel "hugged." If you don't like to sleep "inside" the mattress, the AS5 isn't the right fit for you.


  • Eco-friendly. They use plant-based and eco-friendly materials certified by CertiPUR-US®.
  • Amerisleep's most advanced mattress, featuring all their best technology
  • Backed by a 20-year warranty


  • A bit pricey, definitely an investment


Amerisleep AS5 is the softest mattress in the Amerisleep collection. It has a very plush feel, ranking a 4/10 on the firmness scale. This mattress works best for side sleepers and those who prefer to sink into their mattress.

Construction Key Points

  • The AS5 has a height of 14".
  • Cover: Made of a blend of polyester, spandex, and celliant. This stretchy material is ultra-breathable and soft so you sleep comfortably throughout the night.
  • Top Layer: 3" of memory foam provides body contouring for pressure relief. It's also made with Amerisleep's Bio-Pur® open-cell design that keeps your cooler than traditional foam.
  • Second Layer: 2" of Active Flex layer adds extra softness without sacrificing support. It cradles your body and allows you to further sink into the mattress for plush comfort.
  • Third Layer: The Hive® transition layer features hundreds of foam hexagons grouped into 5 comfort zones. These expertly cushion and support your head, shoulders, back, hips, and feet to keep you properly aligned.
  • Base Layer: 7" of high-density poly foam has an extra firm feel that supports the mattress and your body weight.

Support & Motion Isolation

Because of the all-foam design, the AS5 does an excellent job at eliminating motion transfer. The thick layers absorb motion incredibly well; especially important if you sleep with a very active sleep partner.

As for edge support, it's decent but not great. Foam mattresses aren't known for having the best edge support. While it does compress if you sit or lie near the edge of the bed, you won't feel as if you're going to fall off.

Reasons to Buy Amerisleep AS5

  1. You get that plush memory foam feel without getting stuck. The 5 inches of the top 2 soft layers respond very quickly, making it easy to move around on the mattress.
  2. This mattress does a great job at isolating motion. If you sleep with a partner, you won't disturb their sleep with your movements and vice versa.
  3. This is an excellent choice if you want to sleep cool. The plant-based Bio-Pur® material's open design creates multiple air channels that continually allow air to flow in, and heat to flow out, so you don't sleep hot.

Reasons to Avoid Amerisleep AS5

  1. If you're a back or stomach sleeper, you're going to find this mattress too soft for your needs. Opt for one of Amerisleep's firmer models.
  2. If you want to spend $500 or less, the Amerisleep AS5 is outside this price range.

Amerisleep AS5 is an ideal choice if you want an ultra-plush yet supportive mattress. You can get 30% off Amerisleep AS5, today!

Where can I find a great, affordable mattress (in 2021)?

If you're searching for an affordable mattress that offers a wide range of comfort and pressure relief, we've compiled a list of mattresses for you to consider:

  1. Saatva Mattress - fantastic for all sleep positions, and is rated our Best Mattress of 2021.
  2. Idle Sleep - great for responsive pressure relief.
  3. Puffy - feels like you're sleeping on a cool cloud (at a good price).
  4. Ghostbed - beautiful, plush cover w/ aerated latex and healthy spinal alignment.
  5. Winkbeds - 3-stage back relief with free shipping and returns.

Read our short, well-researched 10 Best Mattresses of 2021, here. Our ultimate goal is to help you pick your perfect mattress online, today!

Check Price →
Get $200 off, purchases over $1000!

Saatva is our top pick for the #1 mattress in 2020! They're a luxury mattress shipped with FREE white-glove delivery & setup (different than regular bed in a box brands put on your doorstep). They have over 50,000 reviews.

Check Price →
Get $200 off your order of $1,000 or more, today!