Eight Sleep Premium 4-Layer High Density Foam Mattress Review

Eight Sleep Premium 4-Layer Mattress Rated
  • Comfort
  • Support
  • Good for Bad Backs?
  • Price
  • Shipping

HTS Verdict

The Eight Sleep Premium 4-Layer Mattress is one of the best mattresses for comfort and support thanks to its incredible engineering and layering. It feels like a mix of the best things about memory foam and latex.

While its not cheap, we think it offers excellent value for money — even if it’s a little on the firm side.

People are realizing just how important a good night’s sleep is. Part of the process is getting a mattress that not only feels comfortable, but also ensures that your body gets the rest it needs during those crucial hours in the evening.

One such mattress is the Eight Sleep Premium 4-layer high density foam mattress from the sleep startup, Eight.

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This mattress mixes researched data and technology to hit on the best mattress possible for everyone.

Despite some minor flaws here and there — don’t worry, we’ll get into these shortly — the noticeable quality of the mattress and the guaranteed comfort is an experience worth having.

Eight Sleep Premium 4-Layer Mattress: The Details


These are the details for the Queen-sized mattress.

  • Product Dimensions: 80 x 60 x 10 inches
  • Hardness: Medium-firm
  • Item Weight: 74 pounds
  • Mattress Composition: two inches of reactive foam, two inches of contouring memory foam, two inches of supportive transition foam, and four inches of high density support foam.
  • Cover: 100% polyester
  • Expansion Period: One hour
  • Warranty: 10 year warranty

What other configurations is it available in? The Eight Sleep 4-layer Mattress comes in four sizes: Full, Queen, King, and California King.

Material Composition

The Eight Sleep 4-layer Mattress comes with, as the name suggests, four different layers of foam, resulting in a luxurious 10 inch mattress.

Top layer: Two inches of reactive poly foam made to settle you into the mattress. It provides a nice cooling effect that won’t leave you waking up soaked in your own sweat.

Second layer: Two inches of memory foam made to compliment the soft feeling the top layer provides as it hugs your body without making you sink too much.

Third layer: Another two inches of poly foam, this time to serve as a transitional layer between the firmer base on the bottom and the softer memory foam on top. This layer distributes your weight evenly throughout the mattress and supports your body no matter what position you sleep in.

Fourth layer: Four inches of high density foam. This mostly serves as a foundational base to keep the mattress from being too mushy and soft, as well as supports you while you sleep.

eight mattress

Eight: The Brand

There are few start-up companies that can be as creative and innovative as Eight. This company not only gathered the best materials to make a comfortable bed, they also applied science research to integrate technology to create the best sleeping experience anyone can enjoy.

They’ve also invented the Eight Sleep Tracker, a revolutionary product that changes the way you think about your sleeping habits.

It is a cover that can go over any mattress, turning it into a ‘smart’ mattress that tracks your sleeping patterns, changes the temperature on both sides of the bed, and measures how well you sleep so you can improve your nightly rituals and get more rest.

>> Check out the Eight Sleep Tracker on Amazon

Eight have also brought out a new mattress product that is an amalgamation of this premium high density foam mattress combined with the Eight Sleep Tracker and other smart technology.

The company has been featured in many magazines, blogs, and newspapers such as Forbes, The New York Times, CNN, and Vogue with reviewers loving the quality products Eight is bringing into the scene.

The Eight Sleep Mattress is one of the best reviewed mattresses on the internet, and we have founders Matteo Franceschetti, Massimo Andreasi Bassi, Andrea Ballarini, and Alexandra Zatarain to thank for that!

Eight Sleep Premium 4-Layer Mattress Review

Stand-Out Features

  • Bounces like latex, feels like foam: this mattress is insanely comfortable thanks to the innovative engineering of the comfort layers
  • 10 year warranty: the Eight Sleep mattress isn’t cheap, so the long warranty gives some much needed peace of mind for its longevity
  • 100 night trial: another bonus point for trying out the mattress is the generous 100 night trial. What’s the worst that can happen? Just return it without penalty if you don’t like it!

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The Positives

Very Comfortable and Supportive

Eight’s motto is “Comfort. Support. Durability” and they certainly deliver those in spades with this mattress.

The unique blend of carefully engineered and layered foams result in this hybrid texture of latex and foam which delivers the benefits of both — soft, molding foam and the cooling bounce of latex. Awesome!

Isolated Movement

The Eight Sleep Mattress was designed with couples in mind, meaning that all the movement on each side of the bed is isolated.

You no longer have to worry about waking the person next to you if you’re a restless sleeper or vice versa.

It will also keep you from waking if you have pets or children who like to sneak into the bed in the middle of the night. Although, whether that’s a good thing or a bad thing is up to you!

Conforms to Body

This mattress neither sinks like a hammock or feels like a wooden table when you lay on it. It hugs you and conforms to your body type in a way that supports your joints all around: good news if you wake up with body pains on your regular mattress.

The Eight Sleep Premium mattress works to evenly distribute your weight about the bed, eliminating pressure points and properly aligning your spine and neck.

Exceptional Quality Materials

You can tell just by touching the mattress that the materials used are top quality. The feel of the mattress makes it seem worth more than it actually is. Some say the Eight Sleep Mattress is rather pricey compared to others in the market (and it’s true), but it’s a great investment if you want a good quality mattress that truly gives you the good night’s rest you need.

Also, thanks to the quality materials, the mattress will last a long time. We’re sure there will be no complaints about a sagging middle area after a few years.

eight mattress premium 4-layer reactive foam

Keeps You Cool at Night

No more worrying about that horrible, uncomfortable heat that gets trapped under your body on your mattress. The top layers of the Eight Sleep Premium Mattress are made of breathable materials, so it keeps you cool at night.

And we’re happy to say that this holds true regardless of what type of climate you’re sleeping in. No more night sweats! The temperature control is excellent.

Easy Shipping 

We say this of basically all mattresses that you can purchase online, but we love the smart shipping from Eight.

It’s compressed, rolled and delivered right to your door in a surprisingly compact box. Just remember to take it all the way to your bedroom before unpacking as it expands so quickly!

Here’s a quick video on what you can expect when unboxing the Eight Sleep Mattress:

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The Negatives

Slight Odor Upon First Unpacking

Once unrolled and inflated to the fullest, there is a rather potent smell that comes from the mattress.

It takes longer than expected for the smell of chemicals to wear off, so the first few nights might be a little uncomfortable if you have a strong nose.

The smell might come from not using water based adhesives but rather solvent-based ones, which results in a stronger factory odor.

We suggest simply airing out your bedroom for as long as possible.

Too Firm for Some

While the mattress does conform to your body nicely, it’s not quite the ‘sleeping on a cloud’ feeling that people who prefer plush mattresses enjoy.

Unlike most foam mattresses, the Eight Sleep Mattress doesn’t seem to focus on softness, but rather support. Some people might find it too firm, although they are only a few in a large majority who find the mattress perfectly comfortable.

And if you’re on the heavier side, this might actually be a plus for you, since the mattress won’t sink you to the point that you form a crater your partner can fall in during the middle of the night.

Plain Design

Despite all the thought that went into making the mattress, it is lacking visually. Unlike a lot of competitors in the industry, the Eight mattress is rather plain and uninspiring.

At first glance, it looks cheaper than it is, which may be far from the truth, but might be a point of concern when you first unpack it.

This is a really fabulous mattress so remember not to judge it by its cover!

Overall Verdict

We love the Eight Sleep Premium 4-Layer Mattress — incredibly comfortable and supportive, cool regardless of climate, and just exceptionally well made and durable.

Sure, it’s on the firm side and some people may find the initial off-gassing odor a little irksome, but we’d heavily recommend at least trying it — the 100 night trial should give you the peace of mind to give it a go.

Where to Buy the Eight Sleep 4 Layer Mattress

As a relatively new sleep startup, the Eight Premium Mattress isn’t exactly available widely, and it can only be found online.

Check out both their own direct company website, as well as Amazon.

eight sleep premium 4 layer mattress

Are you tempted to try the Eight Sleep Premium 4-Layer High Density Mattress?

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