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We have an affiliate relationship with and receive compensation from companies whose products we review on this site. We are independently owned and the opinions expressed here are our own.
We have an affiliate relationship with and receive compensation from companies whose products we review on this site. We are independently owned and the opinions expressed here are our own.

Eight Mattress Review

Jake Comfort  |  Updated: January 2024

Jake Comfort  |  Updated: January 2024

We have an affiliate relationship with and receive compensation from companies whose products we review on this site. We are independently owned and the opinions expressed here are our own.

If you haven’t been paying attention to the mattress industry over the past few years, you might be shocked to see how much it has changed. While traditional mattresses are still available on the cheap, you can also find luxury foam mattresses for bargain prices as well. This is largely thanks to advancements in e-commerce and other forms of online shopping – companies have crowded the market to compete with one another.

You no longer have to pay thousands of dollars to get a high-end mattress. You can find great deals on mattresses directly through the internet – many of these companies also offer free shipping and long trial periods. It’s the perfect way to shop for a mattress in the 21st Century.

One of the new companies providing luxury mattresses to American customers is Eight Mattress – also known as Eight Sleep. This mattress company started in mid-2014 by creating a sleep tracker that would analyze the sleeping patterns of customers. It wasn’t until after the sleep tracker release that the company first designed its signature mattress – the Saturn. Now, the firm is well-known for providing beds that integrate technology into the mattress.

You’re able to use sleep trackers that are integrated into the bed to track your sleep and improve your rest. It’s truly innovative technology that comes at an extremely affordable price. This review will explore everything you need to know about Eight Mattress – we’ll specifically look at the Eight Saturn mattress. If you’re someone who wants to purchase a new bed in the near future, make sure to take a look at everything in this review!

Eight Mattress Review

© Eight


If you’re considering purchasing a new mattress, you need to know how it is constructed if you want to fully understand what you’re buying. The Eight Saturn mattress is constructed using a combination of different foams – each foam provides a different benefit to the person sleeping on the mattress. Below we’ll take a deeper look at the construction materials present in the Eight Saturn mattress.


As mentioned previously, the mattress is constructed using a variety of different foams. There is a three-layer system in place in the Saturn mattress, which allows for an optimal amount of comfort and support. Each layer will be explored in further detail below:

Top Layer

The top layer provides most of the comfort – if you’re interested in how the mattress will feel, this is the layer that plays the most vital role. This layer of the mattress is made up of 2” of poly foam – it provides needed contour and softness for the person who sleeps on it. This being said, it does provide a bit of resistance, so you won’t be overwhelmed with too much sinkage.

Middle Layer

The middle layer of the mattress is the transition layer. It is made from an additional 2” of poly foam. This poly foam is slightly different than the top layer – it is denser, which provides a decent transition from the top to the bottom.

Bottom Layer

The bottom layer of the mattress is made from high-density poly foam – this layer is 6” thick and ensures that there is plenty of support for the rest of the mattress. This foundational layer is what keeps the mattress sturdy when you sleep on it.


The cover in the Eight Saturn mattress is one of the most unique aspects of the mattress. But it’s not the comfort or feel that the cover provides that’s newsworthy – it’s the fact that it uses integrated technology to improve your quality of sleep. This cover is connected to a cord that will track your sleep patterns, movements, body positioning, and more. In addition, it can even regulate the temperature of the mattress to help you improve your sleep. All the data and information collected by the cover can be accessed on an app – it’s a great way for you to get a deeper understanding of your own sleep.

© Eight

Firmness, Feel, and Support

With all this talk about technology, it’s often easy to forget the most important component of the mattress – the way it feels. If you’re looking to purchase a new mattress, you need to be certain it’s exactly what you’re looking for. In this section, we’ll explore how comfortable the mattress is, as well as what you can expect in terms of firmness.

While this is a foam mattress, it’s not a memory foam mattress. You won’t feel the same amount of hug and contour that you might feel from a traditional memory foam mattress. But this isn’t necessarily a bad thing – many people believe that memory foam can be overwhelming and cause too much heat retention. This mattress provides plenty of bounce to the person who sleeps on it.

In terms of firmness and support – the Eight Saturn is actually one of the firmest mattresses on the market. We believe the mattress should be rated around 7.5-8/10 in terms of firmness. It’s a great option if you’re looking for plenty of support. While extremely overweight people may need even more support, those a bit on the heavier side will find this mattress suitable.

In terms of heat retention, the Eight Saturn uses the cover to automatically regulate heat – you can customize your heat retention as well. This is perfect for people who often have a hard time finding a suitable mattress in terms of breathability.

Changes Over the Years

As Eight Mattress only started in 2014, there haven’t been many changes throughout the years. The company has brought out a few different mattresses that build upon the foundation of the Saturn. If you’re looking for something slightly different than the Saturn, you’ll be able to find it if you look at some of their other mattresses. Remember, Eight Sleep used to simply be a sleep tracking technology company – the release of their mattresses has been the most significant change in their business.


Sinkage is a term used to describe how much the mattress surface sinks when a weight is applied to it. Sinkage gives a decent indication of how much support or how much hug a mattress will provide. To judge this, we put a variety of different weights on the mattress to test how far they sink into the mattress surface.

With a 6 lbs. weight on the mattress, we saw 1” of sinkage. With a 10 lbs. weight on the mattress, we saw 2” of sinkage. With a 100 lbs. weight on the mattress, we saw 5-5.5” of sinkage. This amount of sinkage supports the idea that there is a high level of support in the mattress.

© Eight


While the Eight Saturn mattress isn’t the cheapest mattress on the market, it’s definitely good value for what you get. The mattress still comes in at much lower than many new competitors – all of their mattress sizes are below $1,000. Considering this also includes the technological capabilities of the mattress, it’s quite the bargain. The only downside is they don’t offer a Twin size of the mattress. Below are the available mattress sizes and their corresponding prices:

California King$949

Other Information

If you’ve read everything in this article so far, you still might be undecided on whether or not you want to purchase an Eight Saturn mattress. It’s natural to have some apprehension when you’re about to make a significant financial investment. That’s why it’s important to also consider other features and benefits that the mattress company provides their customers.

You don’t want to work with a company that doesn’t provide additional benefits. There are too many mattress companies available on the market to waste time with firms who don’t have considerable benefits. If you purchase a mattress without a warranty or trial period, you might end up paying a serious amount of money in the future.

This section of our review will take a look at all the additional benefits you’ll receive if you work with Eight Mattress. It’s very important to compare these against other mattress companies that you might be looking to work with.

Sleep Tracking Technology

This has been mentioned throughout the review, but one of the best features available in the Eight Mattress is the sleep tracking technology. This unique mattress keeps track of your bio signals and sleep patterns to ensure you have a deeper understanding of your sleep. It also keeps track of everything for you in their smartphone app. This is something that you won’t find in many other mattresses!


It’s always vital to consider the warranty that your mattress comes with. You don’t want to end up purchasing a mattress that you’ll need to replace in a few years. Many mattress companies provide their customers with a warranty that lasts around five years. Fortunately, if you work with Eight Mattress, you’ll get a ten-year warranty that ensures you won’t have to pay for any replacements in the next decade.

The only downside to this warranty is that the company hasn’t been around for long. If Eight Mattress closes down, your warranty will not be valid. This being said, Eight Mattress seems to be continuing to grow.

Trial Period

Ordering a mattress online without trying it out can cause some people a lot of anxiety. You can read all the reviews you want, but how can you really know what a mattress is like until you sleep on it? If you’re someone who wants to reduce the risk of making a bad investment, you’ll be pleased to know that you can get a 100-night trial via Eight Sleep Mattress.

This means that you have over three months to decide if you like the mattress or not. Some mattress companies don’t offer this benefit, while other only offer around 30 days to their customers – this is a great deal from Eight Mattress!


If you don’t want to pay for the entire cost of the mattress upfront, make sure to consider using the financing that’s on offer at Eight Mattress. They have partnered with Affirm to provide their customers with low-cost financing.

This is always a good option if you want to spread the cost of the mattress out – you can typically set up monthly payments. Some customers may be pre-approved for financing.


While the prices at Eight Mattress might be very affordable, you don’t want to end up spending a lot of money on shipping. Some mattress companies will make you spend a lot of money to get your mattress delivered – it’s not like delivering a small package or item.

Fortunately, you get 100% free shipping when you order an Eight Mattress. This means that you won’t have to worry about any additional costs associated with purchasing one of their mattresses. You only pay what you see.

NYC Showroom

Lastly, if you live in the New York area you can check out their mattresses in their showroom. While there is a 100-night trial, it’s still sometimes best to go and check out the mattress for yourself. Unfortunately, they only have a showroom in New York City at this time.

Should I Buy the Eight Mattress?

If you’re looking for an affordable, comfortable mattress that also provides you with high-end technology, the Eight Mattress is definitely one of the best options available. You won’t find another mattress with such advanced technology. One thing to keep in mind is that the mattress is extremely firm compared to many competitors. If you’re looking for something soft, this probably isn’t the right mattress for you.

In addition, Eight Mattress also has a great deal of additional benefits – you’ll find a long warranty and long trial period included with every mattress. In addition, you’ll be able to keep track of all your sleep data through their integrated app.

If you think you would like to purchase another type of mattress, there are plenty of other mattress choices available on our website. We review tons of different mattresses – some of our reviews even compare mattresses against one another. We’re one of the top mattress resources available on the internet.

4.8 out of 5 stars (based on 4 reviews)
Very good25%