Amerisleep AS3 Mattress Review

Scott White
Chief Sleep Researcher
Updated 3 Days Ago

The Amerisleep AS3 mattress is a medium feel option designed to accommodate most sleep positions using responsive, pressure-relieving Bio-Pur foam. Zoned support provides ergonomic spinal alignment by cradling the shoulders and hips more. Breathable Bio-Pur foam keeps you cool for recovery while the Celliant cover converts body heat to infrared energy, making the AS3 an exceptional choice for restful sleep.


This model offers more pressure relief compared to its predecessor. It's an excellent choice for those suffering from chronic pain, providing restful, restorative sleep.

Offers an impressive range of comfort experiences, ensuring there's a perfect match for all sleep styles and preferences. This customization helps to accommodate pressure areas and cater to various sleeping positions, enhancing overall comfort.

Eliminates 99.9% of harmful microorganisms, providing a clean, bacteria-free sleep surface and contributing to the mattress's longevity.

Our Recommendation

While this is a impressive option, one name stands out as our number one pick: the Saatva mattress. We rigorously research and review mattresses to help you find the perfect night's rest. Our top pick, the Saatva mattress, stands out for its unparalleled comfort, superior support, and durability. Crafted with eco-friendly materials and multiple firmness options, it's the cost-effective choice for your best sleep yet. Discover the magic of Saatva and elevate your sleep experience.



Looking for a super plush mattress    

Wanting traditional innerspring mattress    

Needing strong edge support


Looking for balance of soft and firm feel    

Wanting solid support with pressure relief    

Needing good spine alignment    

Looking for an eco-friendly mattress    

Wanting Amerisleep's advanced memory foam    

Needing good motion isolation

The Amerisleep AS3 mattress blends the softness you want with the support you need. It utilizes eco-friendly, heat-wicking materials to keep you sleeping cool and comfortable. The advanced Hive® transition layer works to keep you perfectly aligned. Pressure is firmer on your back and softer on shoulders and hips) so you wake refreshed and pain-free. Try the AS3 risk-free with Amerisleep's 100-night trial, today!

Get The AS3 if...

  • You're a hot sleeper. Plant based Bio-Pur® material layer features an open-cell design that allows more air to circulate than traditional foam beds.
  • You need targeted support. The AS3's Hive® transition layer is zoned in 5 areas to provide firmer support for your head, back and legs, and softer support for your shoulders and hips so you stay aligned all night long.
  • You want an all-foam mattress. The AS3 is constructed with three layers of dense foam that cradle and adapt to your body.

Skip The AS3 if...

  • You sleep predominately on your stomach. Stomach sleepers tend to need a more firmer base and feel to prevent hips sinking too far into the mattress (throwing you out of alignment). You'd sleep much better on the Amerisleep AS1 model.
  • You like the traditional feel of innersprings. The AS3 is an all-foam mattress, but if you want the extra support and lift of coils, try the AS3 Hybrid model.
  • You aren't a fan of the mattress-in-a-box concept. Amerisleep ships their mattresses rolled and compressed in a box; it expands once opened.


  • Backed by a 20-year warranty.
  • Eco-friendly. They use plant-based and eco-friendly materials certified by CertiPUR-US®.
  • Amerisleep mattresses are proudly made in America.


  • A bit pricey, definitely an investment
  • The all-foam design may not be suitable for those who need more support.


The AS3 is constructed to have a medium feel (5.5/10 on the firmness scale) and is the most popular comfort level across all sleeping positions.

Construction Key Points

  • The AS3 is 12" tall.
  • Cover. Ultra breathable, it's made from a blend of Celliant fabric, spandex, and polyester that feels soft and stretchy to the touch. It helps your body recover by retaining body heat and converting it into infrared energy, which then gets transmitted back to your body to help alleviate sore muscles and improve circulation.
  • Top Layer. Plant based Bio-Pur® material keeps you cool all night. It features an open-cell design that allows more air to escape than traditional foam. It contours to your body to relieve pressure points and bounces back fast, so you won’t feel stuck.
  • Transition Layer. Hive® layer provides targeted support and pressure relief so you can sleep in perfect alignment. It gives your head, back, and legs more support and your shoulders and hips more cushion.
  • Base Layer. Bio-Core® base layer gives you durable support that lasts for decades. It won’t sag or develop soft spots over time.

Support & Motion Isolation

Because of the all-foam design, the AS3 does an excellent job at eliminating motion transfer.

What Makes The Amerisleep AS3 Stand Out?

  1. 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.
  2. You get that plush memory foam feel without getting stuck. The 4" of soft foam responds very quickly, making it easy to move around on the mattress.
  3. If you sleep with a partner, this mattress does a great job at isolating motion. You won't disturb their sleep with your movements and vice versa.

The Amerisleep AS3 is a fantastic option if you want a soft, yet supportive mattress. It's also surprisingly comfortable. You can get 30% off the AS3, today!

Where can I find a great, affordable mattress (in 2024)?

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 2024.
  2. Puffy - feels like you're sleeping on a cool cloud (at a good price).
  3. Ghostbed - beautiful, plush cover w/ aerated latex and healthy spinal alignment.
  4. Winkbeds - 3-stage back relief with free shipping and returns.

Read our short, well-researched 10 Best Mattresses of 2024, here. Our ultimate goal is to help you pick your perfect mattress online, today!




What makes the Amerisleep AS3 mattress unique?

The AS3 stands out for its proprietary Bio-Pur® foam that provides advanced pressure relief and cooling properties not found in traditional memory foam.

How does the Amerisleep AS3 regulate sleep temperature?

Bio-Pur® foam contains an open-cell structure to promote airflow and dissipate heat. Added airflow from the mattress cover and base layer keep sleepers cool.

Can the Amerisleep AS3 help with back pain?

Yes, the balance of cushioning comfort and firm support in this medium mattress aligns the spine and alleviates back pain for most sleepers.

What is the Amerisleep AS3’s trial period and warranty?

Amerisleep offers a 100-night sleep trial and a 20-year warranty covering indentations greater than 3/4" and manufacturing defects.

Does the Amerisleep AS3 offer free delivery?

Free no-contact delivery is provided throughout the contiguous USA. Additional charges apply for Alaska, Hawaii, and Canada.

Is the Amerisleep AS3 environmentally friendly?

Amerisleep uses plant-based Bio-Pur® foam and recyclable mattress materials for an eco-friendly design.

How does Amerisleep AS3's pricing compare to other brands?

The AS3 is priced very competitively against other mid-range, higher-quality all-foam mattress brands.

Can the Amerisleep AS3 be used with adjustable bases?

Yes, the AS3 is compatible with most adjustable bases provided the weight limits and dimensions accommodate the mattress.

Is Amerisleep’s customer service reliable?

Amerisleep is renowned for their exceptional customer service, reflected in rave reviews of their support team’s responsiveness.

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