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Amerisleep AS4 Memory Foam Mattress

Review Last Updated: 11th March 2020
Product Review by Adam
Product Features
  • High-performance Celliant cover
  • Breathable, plant-based Bio-Pur material
  • Affinity layer with HIVE technology
  • Medium-soft
  • 20-year warranty


Today we will be checking out the Amerisleep AS4 Memory Foam Mattress.

If you are in the middle of your search for the best twin mattress, then you have arrived at the right place.

Here at Top Review Zone, we review some of the best products available in today’s market.

We explore a wide range of products from various manufacturers with different price tags.

We are confident that our reviews will make you more confident in your final decision.

However, we would always suggest establishing your budget before starting your hunt.

Please stick around to find out all about the Amerisleep AS4 Memory Foam Mattress.

Let’s meet the candidate!


  • Versatile
  • Eco-friendly
  • Plush firmness
  • 20-year warranty


  • Premium price, won't be compatible with most budgets

Amerisleep AS4 Memory Foam Mattress Product Review

Amerisleep, which was founded in 2010, has one goal in mind, and that goal is to offer customers high-performing, eco-friendly, and American-made mattresses.

Over the last decade, Amerisleep has experienced a rise in popularity and has proven to be a serious contender at the table.

The Amerisleep AS4 Memory Foam Mattress continues this success.

The AS4 is the medium-soft mattress in the Amerisleep range and is specially designed for side sleepers, as the soft top layer effectively relieves pressure on shoulders and hips.

If you are a back or stomach sleeper, we would suggest checking out the firmer models featured in the Amerisleep line.

Its proprietary, cooling Bio-Pur and HIVE comfort layers combined create a soft but responsive feel that relieves pressure points and gives you that floating feeling throughout.

The high-performing Celliant cover promotes an increased comfort, faster recovery, and elevated sleeping experience.

The Celliant cover enhances local circulation, which is an ideal choice for senior citizens or those recovering from surgery.

If you are a self-proclaimed hot sleeper and find it challenging to find a compatible mattress, the AS4 is the perfect choice for hot sleepers as the transition layer features air channels to cool people down.

Its breathable, plant-based Bio-Pur material keeps you cool with an advanced open-cell design and comfortable throughout the night.

The Bio-Pur material is five times more breathable than standard memory foam mattresses on the market, and will quickly wick away any heat and keep you fresh.

It bounces back faster than memory foam, and you will never feel “stuck” or struggle to get out of bed with this Amerisleep original model.

The base layer features HIVE technology, which provides extra cushion where you want it and supports where you need it.

It is a bed in a box mattress, which means it will arrive compressed and shipped straight to you.

It would help if you gave the mattress some time to allow your mattress to breathe and fully expand, and you will be happy to know a chemical scent is not experienced with the AS4 Amerisleep mattress.

Amerisleep is known for providing some of the more premium-priced products available in today’s bedding market, and therefore we suggest confirming your budget before making up your mind.

With your purchase are a 100-night sleep trial and a 20-year warranty to bring peace of mind to the investment.


Overall, the Amerisleep AS4 Memory Foam Mattress is very comfortable and supportive.

It is designed for side sleepers, and after checking out the performance, it is one of the best mattresses available in today’s market that is compatible with the side sleeping position.

The top layer is a soft experience for sleepers, as well as providing effective pressure relief on shoulders and hips.

So, if you are a back or stomach sleeper, we would suggest exploring the other models featured in the Amerisleep mattress line – models AS2 or AS3 might be worth your attention.

On the market with a premium price tag, you should note Amerisleep products come with a 100-night sleep trial and a 20-year warranty, which will be an excellent long term investment.

What did you think of the Amerisleep AS4 Memory Foam Mattress? Let us know in the comments below.

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