Amerisleep AS4 California King: All Models Reviewed 2022

It’s not difficult to imagine that the process of purchasing an all-new mattress can be stressful. Amerisleep AS4 California King

Within 5 minutes of going online, you will be bombarded by advertisements and companies that claim their mattress is the best. However, through my numerous years of testing mattresses I’ve learned that there is no single best mattress for every person.

Companies such as Amerisleep on the other hand, make it much easier to find the right fit for you. They have an all-foam and hybrid mattress collection with a variety of firmness levels. They truly have something for everyone!

Which mattress would be best for you?

Continue reading for our full Amerisleep Mattress review.

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Amerisleep Overview Amerisleep AS4 California King


As we’ve said before, Amerisleep is all about giving their consumers choices. AS1, AS2, AS3, AS1, AS2, AS3, AS4, and AS5 are the five mattress options available. They vary from firm (AS1) to a delightfully gentle (AS2) (As5). Amerisleep mattresses are available in both all-foam and hybrid models.

Today, we’ll focus mostly on the all-foam models. Read on to learn more about hybrid models, beginning on the AS3 Hybrid, which is their most popular hybrid model.

Although the firmness, comfort and support of Amerisleep mattresses are different and the entire line is likely to be a better option for some clients.

Who is likely to like the mattresses from the Amerisleep brand?

  • Customers are looking for a range of firmness options
  • For those who love mattresses made from memory foam
  • Those who desire to reduce their partner’s capacity to feel motion on the mattress.

Who Doesn’t Love this? Amerisleep Mattresses?

  • People looking for a more lively mattress
  • Consumers looking for a low-cost mattress
  • People who sleep in hot environments at night

 

Amerisleep Mattress Firmness And Feel


The topic of firmness has been mentioned at least a couple of times. It is the Amerisleep mattress stands out with its broad selection of firmness options. Let’s discuss the level of level of firmness for every Amerisleep mattress and how it feels.

How Firm Are The Amerisleep Mattresses?

Every Amerisleep mattress is firm in its unique way. The Amerisleep AS1 is more rigid than the average mattress with an 8/10 rating that is on the firmer end of the scale. AS2 AS2 is the next-softest model, with a score of 7.5/10 but is heavier than average. With a score of 6.5/10, the Amerisleep AS3 is right in the middle of the range of firmness. It is the Amerisleep AS4 as well as the AS5 is the AS4 and AS5 are two of the most soft models in the following order. The AS4 is more comfortable than average at 6/10, while the AS5 is less abrasive than average at 5.5/10.

However, the quality of these mattresses will be dependent on your weight and height. On the one side, they may seem more firm if you push deeper into the mattress, and then reach the support layers if you are heavier. If you are heavier, however you might find the five mattresses significantly more soft.

 

Sleeping On The Amerisleep Mattresses


I spent a good amount of time on all five mattresses, trying the mattresses in different sleeping positions. It is evident that each differed in their performance!

Amerisleep AS1

AS1

As one of the firmest mattresses of the Amerisleep series It’s possible that the AS1 may be too firm for those who sleep on their backs. Its support is fantastic however the comfort layer isn’t thick enough to let our hips fully sink into it. We were disappointed. On your back, you want the hips of your back to slide a good bit to ensure your spine remains in a neutral position while you rest.

If we lie on our backs as we sleep, we feel a lot of pressure on our shoulders as well as our hips as a result of AS1. We’ll take a closer examine the more supple variations in the coming moments and find out how they ease stress.

The Amerisleep AS1 really shines when sleeping on our stomachs. Those who sleep on their stomachs need an appropriate mattress that offers support for their hips. If your hips aren’t properly support, their spine might be thrown out of position. Amerisleep AS1 provides adequate support for the spine and this shouldn’t be a concern.

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Amerisleep AS2

AS2

Since the AS2 is less abrasive than the AS1, we get a better balance of comfort and support while sleeping on our backs. The hips are correctly bent and the top foam layers are pushing up into the lumbar area.

The AS2 isn’t firm enough for side sleepers and we can drive over the mattress and feel tangled up around our shoulders and hips. After some nights, we could see this is causing significant discomfort and pain.

We can feel a decent support under our hips while sleep on stomachs on Amerisleep AS2. If you prefer to rest on your stomach then it is the Amerisleep AS1 mattress is your best way to go.

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Amerisleep AS3

AS3

A medium-firm mattress such as one like the Amerisleep AS3 is ideal for back sleepers. It’s not a surprise it is that AS3 is among our top picks for back sleepers. The Bio-Pur foam on top provides a bit of contouring to our body contours, while also keeping us in place. It’s among the top mattress for those who sleep on their backs, among the Amerisleep types.

There is virtually no tension on my shoulders or hips when I lie on my side using the AS3. This larger layer of Bio-Pur foam actually cushions our joints, unlike the previous experiences we had when using AS1 or AS2.

In our bellies the Bio-Pur foam layer does us no favours. When it comes to compression reduction it’s fantastic, but we’re not getting sufficient support for our hips.

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Amerisleep AS4

AS4

We’re currently in the realm of a mattress that’s soft. Because it’s the AS4 mattress by Amerisleep is the 2nd most supple, we are experiencing a loss of support when we sleep with our backs. Lumbar support is not as strong and we’re sinking down the mattress a little.

The Amerisleep AS4 mattress performs best when it is placed on its side. We’re sinking into the mattress due to a massive four inches of bio-pur foam, and our shoulders and hips are feeling almost no strain.

If you’re looking for a mattress that is suitable for stomach sleeping, a mattress that is ideal for side sleeping isn’t ideal. The Amerisleep AS5 mattress isn’t an exception, and it doesn’t offer the support we require.

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Amerisleep AS5

Amerisleep AS4 California King

There’s a layer of Active Flex in the Amerisleep AS5, which is their most soft and extravagant model. As a result, we feel more support for our head and shoulders when we lie on our backs.

The AS5 is a good choice for people who prefer sleeping on their side because it is the softest mattress. The weight of the world fades away as we snuggle to the soft comfort layers.

For stomach sleeping The A5 doesn’t offer enough support, even when using it’s Active Flex foam. If we are sleeping on our backs, we prefer the Amerisleep AS1 and AS2.

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What Is the Feel of the Amerisleep Mattress?


The foam that is used in all Amerisleep mattresses is similar in feel and is both firm and soft at the same simultaneously. Although we may sink quite in the middle when lying on these mattresses, we have no difficulty moving around in any way. The Bio-Pur foam utilized in these five mattresses differs, and we sink more into the softer beds more. Take a look at our Amerisleep vs Tuft & Needle comparison to find out how they compare against another mattress that responds. See the way Amerisleep and GhostBed perform against a mattress made of latex in our Amerisleep comparison. GhostBed comparison.

Average Weight Sleepers – 130 lbs- 230 lbs

The Amerisleep AS3 provides the best confort and assistance for average-weight back sleepers. The AS2 is the best choice for those who need extra support. If you are between those between the AS4 as well as AS5 the weight categories, you ought to opt for the AS4. The Amerisleep AS1 is the firmest mattress designed for stomach sleepers in that weight class!

Heavyweight Sleepers – Over 230 lbs

It is the AS1 also known as AS2 of Amerisleep is ideal for heavier persons who prefer to rest on their backs on a mattress that is firmer. It is possible that the AS3, AS4, and AS5 could not be strong enough to take their heavier weight. It is possible that the Amerisleep AS4 or AS5 should be suitable for people who are heavier and want to sleep on their side. This Amerisleep AS5 is the better option for those who weigh more than 300 pounds. If they intend to stomach sleep in the AS1 is their best option however, their size might make it insufficient.

Lightweight Sleepers- Under 130 lbs

Back sleepers who are light in weight require a mattress that isn’t too firm, as this will keep the hips of their backs sinking fully in the bed. Their best option would be to buy any of the Amerisleep AS3 models or the Amerisleep AS4 (if they want something that is softer). AS3, AS3, AS4, and AS5 are the best options for pressure relief for sleepers on the side due to its modest weight, but the AS5’s additional features might not be needed for those who sleep on their side. They’ll get the support they require from either AS1 or AS2 as they sleep.

 

Amerisleep Mattress Construction


There are some similarities among these and Amerisleep mattresses, including the utilization of the similar materials. Regarding the comfort layers, though, you’ll notice some notable variations.

Amerisleep AS1

amerisleep-as1-construction

There is a permeable covering that covers the Amerisleep AS1 mattress just as it is on all Amerisleep mattresses. Bio-Pur Foam is a material that’s found on the top layer of the majority of Amerisleep mattresses, is the top two inches of the mattress’s comfort layer. A plant-based foam that is more breathable and responsive than traditional memory foam is the name we’re using for this innovative material. It’s also more eco-friendly than many foams for mattresses because it’s an open-celled. Bio-Core foam, which measures eight inches in thickness, provides an additional layer of support to the mattress.

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Amerisleep AS2

amerisleep-as2-construction

In terms of size in terms of height, it is taller than the Amerisleep AS2 measures in at 12 inches, which is similar to the other models. Similar to the AS1 it also has 2 inches of bio-pur on top. The 3″ of HIVE transition layer is also included below to provide extra support and comfort various positions of the mattress. Bio-Core foam is the material used in the 7-inch support layer.

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Amerisleep AS3

amerisleep-as3-construction

There is a 3-” thick layer of Bio-Pur foam on the top of the Amerisleep’s comfort layer, and the mattress is 12″ tall. To top the AS3 there is an inch additional. This HIVE layers are 2” thick instead of the 3” thickness. Finally, a 7-inch Bio-Core foam layer completes that support layer.

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Amerisleep AS4

amerisleep-as4-mattress-construction

Alongside having a height of 12 inches, it is also 12 inches tall. Amerisleep AS4 offers the same waterproof cover! Do you notice a pattern emerging? When compared to Amerisleep AS3, the Bio-Pur foam top layer is much more thick (it is 4 inches thick!). Only 1” of it is HIVE transition foam and 7 inches of Bio-Core foam form the bottom of the mattress.

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Amerisleep AS5

amerisleep-as5-construction

The Amerisleep AS5 mattress has an extremely thick 14-inch cover and you’ll know what it’s made of. There’s a good chance it’s the same as other mattresses available in stores. It is made of Bio-Pur and is sandwiched with layers distinct AS5 foam. Soft and springy Active Flex is used in the construction of this 2-inch piece. All Amerisleep mattresses have a 7-inch Bio-Core foam base.

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Amerisleep Mattresses Size Options And Price


Twin Twin XL Full  Queen King Cal.King Split King
Amerisleep AS1 $899.00 $949.00 $1149.00 $1299.00 $1599.00 $1599.00 $1898.00
Amerisleep AS2 $1199.00 $1249.00 $1349.00 $1499.00 $1799.00 $1799.00 $2198.00
Amerisleep AS3 $1149.00 $1199.00 $1349.00 $1499.00 $1899.00 $1899.00 $2398.00
Amerisleep AS4 $1449.00 $1499.00 $1649.00 $1799.00 $2099.00 $2099.00 $2998.00
Amerisleep AS5 $1849.00 $1899.00 $2049.00 $2199.00 $2499.00 $2499.00 $3798.00
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Amerisleep Mattress Performance


Let’s look at how Amerisleep mattresses do! Check out their performance with regards to the cooling process, transfer of motion and edge support. Read on.

Sleeping Hot Or Cold

In our experience, Amerisleep mattresses do not cause excessive heat while sleeping. Bio-Pur foam is specifically designed to keep the mattress cool, as we stated earlier. If you’re sleeping in Amerisleep mattresses, it is important not to overheat like you do on other mattresses.

Mattresses made of latex and coils are great for keeping you cool in the evening if have a major problem with overheating. Hybrid mattresses are great for those who sleep hot because they’re more comfortable and breathable.

Motion Transfer

Even though they are more responsive than other mattresses mattress brands, they have a low motion transfer coefficient. Due to Bio-Pur’s motion isolation when you sleep with a partner and you move around, it shouldn’t disrupt them.

The thicker Bio-Pur foam layers on the AS3 and AS4 are ideal for couples who want the most comfortable mattress.

Edge Support

Edge support is different among Amerisleep mattresses. The more firm models let us feel more comfortable sitting or sleeping on their edges (the AS1 and AS2). We feel less support for the edges, especially while we are lying down, when we upgrade to the more soft models.

Durability

All mattresses from Amerisleep are constructed of high-density material and are built to last. Therefore, we estimate that the mattresses will last between seven and ten years in the most.

Off-gassing

The Amerisleep mattresses exhibit some early off-gassing. However, this is normal given the fact that they’re delivered in boxes. If you purchase a mattress online that contains chemicals, the smell will dissipate in 48 hours.

Noise

If we sleep on our Amerisleep mattresses, they don’t produce any noticeable sound. As a result, you won’t hear your spouse’s movements through the house at evening.

Sex

Mattresses from Amerisleep are more flexible, which could make them ideal for sex, according to this review. However, if you use AS4 or the AS4 or AS5, you may sink further and have difficulties moving your partner around.

Warranty Info

All Amerisleep mattresses come with a 100-night sleep trial and a 20-year warranty.

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Amerisleep Hybrid Mattress Review


In addition to Amerisleep’s popular all-foam mattresses, the company has now introduced hybrid models. Amerisleep’s AS3 Hybrid model is a hybrid of its all foam AS3 model, and we’re here to share our experiences with the AS3 Hybrid model.

The support layers make up the primary distinction between these two models. AS3 Hybrid has zoned pocketed coils, whereas AS3 all-foam has a foundation polyfoam core. But, as with the AS3’s all-foam counterpart AS3 Hybrid, AS3 Hybrid is also a polyfoam. AS3 Hybrid features Bio-Pur foam on top.

The AS3 Hybrid’s coils offer it additional support than the AS3 mattress’s all foam counterpart. As a result, it could be a better option for those who are heavier and need additional support. The AS3 Hybrid mattress has a better ventilation due to the coils, which makes it a cooler mattress overall. When it comes to cost it is the AS3 Hybrid mattress is going to set you back about $200 more than the AS3 All-Foam Mattress.

The Amerisleep all-foam mattresses are the best option when you’re on a strict budget or on the lighter side in the range. If you’re heavier or want an item that’s more permeable then the Amerisleep Hybrid versions are the ideal choice.

 

Summary Amerisleep AS4 California King


Overall, I think that the Amerisleep mattresses are great.

There are many people who can select an Amerisleep which is suitable for them because of the many options available.

The mattresses are extremely comfortable to the touch and they provide excellent support and comfort for the price.

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Amerisleep Mattress FAQs


Is Amerisleep a mattress that is good?

It is undisputed that Amerisleep mattresses are excellent. There are a variety of firmnesses available, making it simple to pick the best fit. They also have soft foams made from plants, which will assist in regulating body temperature.

How long will Amerisleep mattress last?

Your weight as well as how you maintain your mattress determines how long the mattress lasts. If you’re looking for a long-lasting mattress, go to Amerisleep mattresses.

Can you flip an Amerisleep mattress?

An Amerisleep mattress is not able to be turned upside down because the layers are designed to be laid out in a specific way. In general, the top layer is the most comfortable. On the other hand, the bottom layer should be most uncomfortable. Amerisleep AS4 California King