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The Bottom Line

The AS4 is a versatile and ideal mattress for anyone who likes a plusher feel.

The celliant cover which is the most upper part of the mattress, that is the layer that is near your body is made with careful hands to give you the best feel and to give your body the soft, smooth and loveable touch.

The firmness of Amerisleep AS4 is proved to be different from people to people. It varies but by summing up all it has been declared with a medium firmness which means not too hard to feel like a stone and not too soft feeling like cotton.

If you are in the search of the mattress that will give you the best sleep Amerisleep AS4 is the best option for you.

Get $50 off on Amerisleep AS4 as our reader!

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Detailed Amerisleep AS4 Mattress Review

Amerisleep is a U.S based company that is famously known for its memory foam mattresses. They put their efforts into making the most comfortable mattress that gives you the best sleep.

They have used such materials and technologies which provides the best result that you feel mentally and physically relaxed. They have tried their level best to make their product most efficient and effective for their customer.

Used technologies like Variable Pressure Foaming(VPF), Surface Modification Technology(SMP), open-cell structure, and celliant cover which makes it unique from other mattresses.

What is Amerisleep AS4 Mattress?

AS4 is the product of the US Amerisleep company that produces mattresses to fulfill the needs of your comfort and takes the responsibility of your best sleep.

It is formerly known as the Colonial. It is comprised of different layers that are best for the side sleepers. It works on your pressure points and gives you relief and make you feel good. The Variable Pressure Foaming (VPF) makes its environment-friendly, the open-cell structure makes it cool, Surface Modification Technology (SMT) gives relief to the people with any kind of back pain.

The celliant cover which is the most upper part of the mattress, that is the layer that is near your body is made with careful hands to give you the best feel and to give your body the soft, smooth and loveable touch

Also, Read Amerisleep AS3 Mattress Review

Amerisleep AS4 Size & Price

It is available in the following 7 sizes with different dimensions, shipping weight, and shipping box sizes:
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Construction ( Cover & Layers )

The constructions took place after many research work and experiments because the company wanted to provide the best result for their customers.

After endless efforts and overcoming the previous suggestions this mattress is designed with very careful attention because not wanted to lack in any of the factors either it’s about form, it’s layered or it’s cover.

The comfort of the customer is the first priority. It is manufactured with a height of 12 inches, containing different layers.

How is it constructed?

It has four layers containing the Celliant Cover as a top layer of the mattress. The second layer is a combination of memory foam and Bio-Pur called Comfort Layer or Cooling Layer. The third layer is called Affinity Layer and the fourth is called Base Layer.

Celliant Cover

The cover of the mattress is the first layer which is designed with a combination of celliant, polyester, and spandex. They combined these three materials together to get the best result of the cover.

The celliant technology itself is a combination of 13 different materials to extract the most comfortable and beneficial results. The cover is made flexible or in other words, it is flexible to be stretch so it may not irritate you in any way.

If you press the mattress with your hand you will the flexibility in the cover which allows your body to lie on mattress comfortability.

Its soft and smooth cover makes you feel so relaxing. Best for the athletes and sports lovers. The celliant technology is specially used keeping in mind the needs and requirements of the body at the time of sleep. This is one of the main difference which makes it different from other mattresses.

Cooling Layer:

The second layer is the Comfort Layer or the Cooling Layer. The main purpose of this layer is to provide comfort to the customer by reducing the heat effect and giving a cooling feel. This was made possible by omitting the old technique of using sprint mattresses which is not good for the body in any of the ways.

It was failed to provide comfort to the body and was becoming the reason for the back pain and its characteristic of moving up and down like a spring made the bed so uncomfortable to sleep and has failed to provide a deep and relaxed sleep.

The cooling layer helps to convert the heat into infrared rays to reduce the heating effect and give a cooling and fresh feel. It uses an advanced open-cell structure which makes it cooler.

The reduction of hotness is made possible by this procedure. It is proven that this technology has increased the coolness 5 times than any ordinary foam. Because of this quality, this layer is also called the Comfort Layer, as it plays a vital role in providing the comfort.

Affinity Layer:

The third layer called the Affinity Layer contains the polyfoam with the convoluted foam often called egg crate foam that lightens the foam by allowing air to flow easily.

Doctors usually recommend this type of foam to the patients who want to avoid bedsore. This layer plays a role as a transition layer between the comfort and base layers.

The affinity layer works on your pressure points. Reduces back pain, shoulder pain, and works on your lower part. The affinity layer is used to overcome the problem raised by the spring concept mattress that started to become the cause of the back pain especially the alignment of the spines was really damaged by the spring mattress. Keeping that in mind they have not used the concept of using spring in their mattress by replacing it with the affinity layer.

This layer is the most important which makes it different from others. Its convoluted design helped to work on your pressure points and gives you relief from pain and also plays a role in healing the spine’s alignment and all types of shoulder pain, back pain, and lower back pain.

Bio-Core Foam:

The fourth layer is the last layer which acts as a Base Layer of the mattress. Providing the foundation to the mattress with 7-inch thickness. As a base layer, it gives support to the whole mattress on which the other three layers are placed.

The combination of the above four layers made AS4 a unique mattress with a combination of comfort, softness, durability, healer, and a perfect mattress to sleep.

Bio-Core foam acts as a Baselayer for the mattress. The purpose of using this foam is its characteristics of giving perfect shape and support that it gives to the whole mattress. Used for its qualities to reduce the pressure and reduce the tension and provide relief.

It prevents the foam from sagging the old and one of the most occurring problems of the mattress is reduced by the Amerisleep AS4 Mattress which makes it durable and long-lasting. You get rid of by changing the mattress after every few years.

It Bio-Core foam does not bulge downwards due to weight, which increases the mattress’s life and provides the most relaxed sleep.

Firmness & Edges support

Firmness:

The firmness of this mattress is proved to be different from people to people. It varies but by summing up all it has been declared with a medium firmness which means not too hard to feel like a stone and not too soft feeling like cotton.

Its medium firmness by the perfect blend of hard and soft has made this mattress the best product for the body to get good support and along with it to get the feeling like you are on some soft smooth surface.

Bounce:

The Active Flex-Foam (the advance pressure relief) is used in this Mattress. It takes 4 seconds to bounce back which means its response time is very fast which makes it comfortable to sleep. If you press the foam with your hands, then you will clearly understand what it means.

In other foam, the shape of your hand remains there, even when you have removed your hand from there. It will take 60 seconds to recover its shapes so we can say that it’s the response time of the mattress is slow and it will take more time to retain its shape. Whereas, it takes only 4 seconds.

Feel:

The overall tuned combination of the different layers made the mattress the most comfortable place to sleep. You will feel like you are in the most suitable and perfect place. Because sleeping time is the most important time of the whole day to rest and get energized.

Any kind of compromise cannot be afforded so they have kept all the things combined in one mattress to give you the best feeling ever.

Edges Support:

The most amazing thing about this mattress is that it gives the same feeling throughout the bed. It does not give an irritating feel and the edge of the mattress gives the same effect.

Like other mattresses, which on edges of the mattress make you feel that you are about to fell down or feel irritated, this Amerisleep AS4 Mattress does not make you feel like that.

Motion Transfer & Sleeping Suitability

Motion Transfer:

The Motion transfer has been tested and by the test, it is noticed that due to the comfort layer the motion is felt low as compared to other mattresses.

Below is the test that is taken place to check the motion effect on the Amerisleep AS4 Mattress. In this test, a medicine ball is dropped from a different height as shown below.

In this test, medicine ball was dropped from 6-inch, 18-inch, and 24-inch height respectively. The right & left, up & down lines movement shows the motion recorded which is very much less as compared to any other mattress.

If you want to share the mattress with your partner or any other family, it is not going to distract you. It is suitable for the people who suffered a lot during sleep, a little sound or movement on the bed distract them to sleep. You can have this mattress for better sleep.

Sleeping Suitability:

Side Sleepers: It is commonly found that most of the people are side sleepers. According to a survey it is also proved that the percentage of side sleepers is greater as compared to any other type of sleeping style.

Keeping this in mind, they have manufactured the mattress in a way that it is going to be the perfect mattress for the side slippers.
Being the manufacturer, it was the first and foremost duty to keep the comfort level and interest of the customer as the top of their priority list which they have done it very smartly and after great efforts the product Amerisleep AS4 Mattress has been launched for their customers with the combination of more comfort and benefits for the body to heal and get relaxed.

Combo Sleepers: Combo sleepers are the people who sleep with the combination of back sleepers and stomach sleepers. It equally supports and provides comfort to the combo sleepers.

For more information on sleeping positions please see our guides for side, stomach sleepers.

Amerisleep AS4 Mattress Is Best For You Or Not?

It Is Best For You If:

Side Sleeper – If you are a side sleeper then this mattress is perfect for your sleep. It is designed specially in a way that is most suitable for you. Omitting the spring from the mattress and using Active Flex-Foam to give you the bounce feel but keeping you away from the disadvantages of the spring.

Want Durable Mattress – Are you tired of changing mattress after every few years? And suffering from back pain due to mattress?? Then Amerisleep AS4 Mattress is here for you to overcome this problem. Its durability makes it long-lasting which prevents you to change mattress frequently.

Want to heal your body – Most of the customers gave the feedback that their constant pain has healed with the change of mattress only. If you wanted to get heal from your back pain so this mattress is for you.

Want better sleep – If you are in the search of the mattress that will give you the best sleep this is the best option for you. It is designed with a combination of four layers and including the technologies that are going to give you a deep and relaxed sleep.

You May Dislike it If:

You need more firmness – It provides medium firmness, means not too hard not too soft. If you are in search of a soft mattress it is not for you.

Frequently wanted to change mattress – It gives 20 years of warranty which means during this if you face any of the problems related to the mattress you can complain to the company and are going to solve it. So you do not need it to change it frequently.

Low price mattress – If you want a mattress with a low price, then this would not be your choice. They have although omit the middleman to reduce the price but still, as compared to other mattresses that are available in the market are available at a much cheaper price but are failed in providing the comfort to your body.

Warrenty & Other Information

Warranty

20 years of Warranty. In which during the duration of 10 years they are going to replace the mattress if you have any genuine complaint. After 10 years they will help you out to overcome the complaint regarding the mattress.

Amerisleep AS4 Mattress is breaking the trend of giving a warranty of about 5 to 10 years by increasing its warranty duration to 20 years.

20 years are a big part of anyone’s life and Amerisleep is giving you this much long time of warranty of their product AS4 Mattress.

100 nights for the trial are offered for the sake of your satisfaction and trust.

You can keep it with you for 100 nights and still wanted to return back so there are an open offer and chance for you to return it back and have your money be fully refunded.

This offer makes it clear and gives an open challenge to use the mattress and feel the difference.

Amerisleep AS4 Mattress Review - Conclusion

Amerisleep AS4 Mattress is the product of Amerisleep which is suitable for side sleepers. Contain four layers of the celliant layer, the comfort layer, the Affinity layer, and the Baselayer.

Used technology like Variable Pressure Foaming (VPF), Surface Modification Technology(SMT), open-cell structure, and Active Flex foam which makes this mattress different from others.

Reduces the cooling effect as compare to others by using an open cell structure. Its 20 years’ warranty duration and 100 days’ trial time gives an open challenge to try their mattress.

Eco-friendly by replacing petroleum products with plant-based materials.

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