Eight Sleep Mattress Reviews

Our Review Process | Disclosure

 

The Tuck team collected and analyzed 282 verified customer experiences from 6 unique sources and spent over 25 hours testing in our lab for this review. This research is supported by you, our readers, through our independently chosen links, which earn us a commission. Read more about what we do here.

Quick Overview

Eight Sleep offers memory foam and hybrid smart mattresses. The company currently sells a total of three mattresses: the Saturn, the Jupiter, and the Mars. They also offer sleepers the ability to customize a mattress and create two different firmness levels in a single mattress (full size and larger) for an added cost. These beds all come with the Eight Smart Cover which connects to an app that monitors sleep patterns, adjusts the temperature, programs alarms, and serves other functions. 

The Saturn is constructed with a top layer of memory foam in the comfort system, followed by a bottom layer of transitional polyfoam. The support core is made of high-density polyfoam.

The Jupiter has three layers in the comfort system: a top layer of ‘Reactive’ memory foam, followed by a middle layer of ‘Contouring’ memory foam and a bottom layer of transitional polyfoam. The support core is made of high-density polyfoam.

The Mars is a hybrid mattress model. The comfort layer features a two-inch top layer of memory foam and a bottom layer of transitional polyfoam. The support core is constructed with a top layer of pocketed coils and a base layer of high-density polyfoam.

All three of these beds sit at about a 6.5 on the firmness scale making them medium firm mattresses.

Our review of the Eight Sleep mattresses found that motion transfer, conforming and temperature neutrality are major benefits. The smart cover is also very unique and a huge benefit for the right sleeper.

Read on to learn more about Eight Sleep mattresses.

Pros
  • Eight’s sleep tracker can be used to monitor sleep patterns, set alarms, adjust bed temperature, and perform other functions using any Wi-Fi-compatible device. This may be helpful for people with sleep problems, or those with comfort preferences that vary from night to night.
  • 100-night sleep trial with no mandatory break-in period
  • Eight Sleep offers a 10% discount to: college students; military servicemembers, veterans, spouses, and dependents; and police, firefighters, and emergency medical technician (EMT) personnel.
Cons
  • Limited firmness range
  • Above-average price-point for the beds themselves – however the smart cover does account for some of this

Ratings and Recommendations

MODEL Description
Saturn
Foam
Medium Firm
Inexpensive
Good for Back Pain
Full mattress details

Mattress Specs

  • 6.5
  • 100 night
  • 10 Year Limited
  • online
  • N/A
  • Foam
  • $599/Queen
  • Free

Sleep Rating

Durability
Good

The Eight Sleep Saturn has a standard construction and should last at least 6 years with nightly use.

Motion Isolation
Good

The Saturn does a great job of isolating motion

Conforming
Very Good

The Saturn does a good job conforming to sleepers bodys and relieving pressure points.

Sex
Fair

The all foam construction of the Saturn doesn't have the same bounce/response as other mattress types making this less ideal for sex

Temperature Neutrality
Good

The all foam contruction does an ok job of regulating temperature which is on par for this mattress construction. For sleepers who get cold at night, the smart cover is a great option since heat can be controlled via the app.

Off-gassing
Good

There is little to no off-gassing with the Saturn and should dissapate within a few days of unboxing.

Edge Support
Fair

Similar to other all foam mattresses, the Saturn has only fair edge support

Noise
Excellent

The Saturn makes no noise when bearing weight.

Jupiter
Foam
Medium Firm
Moderate
Good for Back Pain
Full mattress details

Mattress Specs

  • 6.5
  • 100 night
  • 10 Year Limited
  • online
  • N/A
  • Foam
  • $899/Queen
  • Free

Sleep Rating

Durability
Good

The Eight Sleep Jupiter has a standard construction and should last at least 6 years with nightly use.

Motion Isolation
Good

The Jupiter does a great job of isolating motion

Conforming
Very Good

The Jupiter does a good job conforming to sleepers bodys and relieving pressure points.

Sex
Fair

The all foam construction of the Jupiter doesn't have the same bounce/response as other mattress types making this less ideal for sex

Temperature Neutrality
Good

The all foam contruction does an ok job of regulating temperature which is on par for this mattress construction. For sleepers who get cold at night, the smart cover is a great option since heat can be controlled via the app.

Off-gassing
Good

There is little to no off-gassing with the Jupiter and should dissapate within a few days of unboxing.

Edge Support
Fair

Similar to other all foam mattresses, the Jupiter has only fair edge support

Noise
Excellent

The Jupiter makes no noise when bearing weight.

Mars
Hybrid
Medium Firm
Inexpensive
Good for Sex
Full mattress details

Mattress Specs

  • 6.5
  • 100 night
  • 10 Year Limited
  • online
  • N/A
  • Hybrid
  • $1,199/Queen
  • Free

Sleep Rating

Durability
Good

The Eight Sleep Mars has a standard construction for it's category and should last at least 6 years with nightly use.

Motion Isolation
Good

The Mars does a great job of isolating motion but not quite to the same extent as the Jupiter and Saturn

Conforming
Good

The Mars conforms to sleepers bodies but not quite as much as the other Eight Sleep models due to the hybrid construction.

Sex
Good

The hybrid contruction gives the mars a bit more bounce and responsiveness making it a good option for sex

Temperature Neutrality
Very Good

The hybrid contruction does a good job of regulating temperature. For sleepers who get cold at night, the smart cover is a great option since heat can be controlled via the app.

Off-gassing
Very Good

There is little to no off-gassing with the Mars and should dissapate within a few days of unboxing.

Edge Support
Good

The Mars has decent edge support compared to all foam mattresses but not as much as other hybrid and innerspring options.

Noise
Very Good

The Mars makes little to no noise when bearing weight.

What Type of Sleeper Is Best Suited for an Eight Sleep Mattress?

Based on our customer feedback, the Eight Sleep Mattresses have received the following grades among sleepers of different weights and preferred sleep positions. Please note that these ratings are subjective, and that everyone has varying experiences on different mattresses. Sleeper comfort and spinal support are the most important factors when it comes to selecting a mattress.

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

SLEEP POSITION LIGHT WEIGHT
Less than 130 LBS
AVERAGE WEIGHT
130 LBS - 230 LBS
HEAVY WEIGHT
Greater than 230 LBS
Saturn
Side
LIGHT WEIGHT
Less than 130 LBS
Side
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Side
GOOD
HEAVY WEIGHT
Greater than 230 LBS
Side
GOOD
Back
LIGHT WEIGHT
Less than 130 LBS
Back
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Back
VERY GOOD
HEAVY WEIGHT
Greater than 230 LBS
Back
FAIR
Stomach
LIGHT WEIGHT
Less than 130 LBS
Stomach
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Stomach
GOOD
HEAVY WEIGHT
Greater than 230 LBS
Stomach
FAIR
Jupiter
Side
LIGHT WEIGHT
Less than 130 LBS
Side
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Side
GOOD
HEAVY WEIGHT
Greater than 230 LBS
Side
GOOD
Back
LIGHT WEIGHT
Less than 130 LBS
Back
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Back
VERY GOOD
HEAVY WEIGHT
Greater than 230 LBS
Back
FAIR
Stomach
LIGHT WEIGHT
Less than 130 LBS
Stomach
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Stomach
GOOD
HEAVY WEIGHT
Greater than 230 LBS
Stomach
FAIR
Mars
Side
LIGHT WEIGHT
Less than 130 LBS
Side
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Side
GOOD
HEAVY WEIGHT
Greater than 230 LBS
Side
GOOD
Back
LIGHT WEIGHT
Less than 130 LBS
Back
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Back
VERY GOOD
HEAVY WEIGHT
Greater than 230 LBS
Back
FAIR
Stomach
LIGHT WEIGHT
Less than 130 LBS
Stomach
VERY GOOD
AVERAGE WEIGHT
130 LBS - 230 LBS
Stomach
GOOD
HEAVY WEIGHT
Greater than 230 LBS
Stomach
FAIR

As you can see, Eight Sleep mattresses are a unique choice for sleepers that have a variety of preferences and want a smart mattress at a reasonable price point.

Our testing process found that Eight mattresses should also be great for you if…

  • You want a smart mattress
  • You like a universal comfort, medium firm mattress
  • You tend to sleep colder at night – the cover temperature function is a game changer here

What You Need to Know About Eight Sleep Mattresses

Construction and Firmness

All three Eight Sleep mattresses carry a firmness rating of ‘Medium Firm’, or 6.5 on our firmness scale. A full breakdown of all components and dimensions for both Eight Sleep mattresses is found in the table below.

Product Name Firmness Rating Thickness Support Core Components Comfort Layer Components Cover Components
Saturn+ 6.5 (Medium Firm) 10″ 6″ HD Polyfoam 2″ Memory Foam
2″ Polyfoam
Polyester with Built-in Smart Tracker
Jupiter+ 6.5 (Medium Firm) 10″ 4″ HD Polyfoam 2″ Memory Foam
2″ Memory Foam
2″ Polyfoam
Polyester with Built-in Smart Tracker
Mars+ 6.5 (Medium Firm) 11″ 4″ Pocketed Coils
3″ HD Polyfoam
2″ Memory Foam
2″ Polyfoam
Polyester with Built-in Smart Tracker

Firmness is rated on a scale of 1 to 10. For more information on how firmness is calculated, please visit our Mattress Firmness page.

Sizing and Pricing

Size Dimensions
Height
Full 54W” x 75L” 10″ (Saturn+,  Jupiter+)
11″ (Mars+)
Queen 60W” x 80L” 10″ (Saturn+, Jupiter+)
11″ (Mars+)
King 76W” x 80L” 10″ (Saturn+, Jupiter+)
11″ (Mars+)
California King 72W” x 84L” 10″ (Saturn+, Jupiter+)
11″ (Mars+)

The next table features a size-by-size price breakdown of all six Eight Sleep mattress models.

Size Saturn+ Jupiter+ Mars+
Twin N/A N/A N/A
Twin XL N/A N/A N/A
Full $699 $999 $1,299
Queen $799 $1,099 $1,399
King $949 $1,249 $1,599
California King $949 $1,249 $1,599

Please note that Eight Sleep awards a 10% discount for all mattresses and accessories to college students; military servicemembers, veterans, spouses, and dependents; police officers; firefighters; and emergency medical technician (EMT) personnel. Discount codes are available on the Eight Sleep website.

Availability: Eight Sleep mattresses are exclusively available online through the Eight Sleep website. The company operates one brick-and-mortar showroom in New York City where customers may test out the mattress; Eight Sleep mattresses are not sold in any brick-and-mortar retail locations.

Eight Sleep Coupons and Discounts

Sleep Trial and Warranty

Sleep trial 100 Nights
Refund Full
Warranty 10 Year Limited
Warranty Transfer Non Transferable
Trial period and full warranty details

Trial Period and Guarantee: Eight Sleep offers a 100-night sleep trial for both mattresses.

  1. There is no mandatory break-in period; customers may opt to return the mattress at any point during the sleep trial in exchange for a full product refund.
  2. Eight Sleep will cover all transportation and handling fees associated with the mattress return.
  3. To initiate the return process, customers should email Eight Sleep with ‘Return Request – [Order Number]’ in the subject line. The company will typically respond within one to two business days to coordinate a date and time for the mattress to be picked up. A refund will be issued two to three business days after the mattress has been removed.
  4. All returned mattresses are either donated to charities or housing facilities, or recycled.

Warranty: Eight Sleep offers a 10-year limited warranty for the Eight Mattress and Eight Smart Mattress.

  1. Warranty coverage begins on the date of original purchase.
  2. Eight Sleep will, at their sole discretion, repair or replace all mattresses that are deemed defective. Eight Sleep will cover costs related to repairing or replacing a defective mattress, but the owner will be responsible for all transportation, handling and inspection charges.
  3. The Smart Tracker cover is not protected under the mattress warranty; a separate one-year warranty will be issued for the tracker.
  4. Eight Sleep mattresses are designed for use on certain types of foundational support systems. Per the warranty, the mattress must be supported by a ‘firm, flat, solid-surface, non-spring foundation (whether non-moving type or adjustable type) sufficiently strong to remain flat and firm under the weight of the product and its users.’ Queen, King, and California King mattresses must be supported with frames or bases that have at least five legs. Use of an improper foundation will void the warranty.
  5. Owners who wish to replace their defective mattress with an upgrade model will be required to pay the difference between the prices of the original and the upgrade. Replacement mattresses will not extend the warranty, nor will this result in a new warranty.
  6. The warranty will cover the following product defects:
    • Visible sagging or indentation in the top foam surface that measures one inch (1″) or deeper.
    • Physical flaws in the foam that cause the material to crack or split despite proper foundational support.
    • Manufacturing flaws in the mattress cover, including cracked or broken zipper. This does not apply to the removable Smart Tracker.
  7. The warranty will not cover the following:
    • Normal increases in foam softness that do not affect the pressure-relieving qualities of the mattress, or indentations or sagging that do not measure one inch (1″) deep. These issues are considered standard wear and tear.
    • Repair or replacement requests that occur due to changes in the owner’s comfort preferences.
    • Burns, cuts, tears, stains, and other types of physical damage resulting from owner misuse, improper cleaning, or inadequate foundational support.
  8. This warranty is exclusively extended to original owners who purchase their mattress from Eight Sleep or Amazon.com. Anyone who buys or acquires their mattress from the original owner or a non-authorized seller will do so ‘as is’, and will not be entitled to warranty protection.

Delivery

How is the mattress shipped? Eight Sleep mattresses are compressed, vacuum sealed, and boxed for shipping
Where do they ship? Ghostbed ships mattresses anywhere in the continental United States.
Full shipping details

Delivery Fee: Standard shipping is free to all addresses. White Glove delivery is available for $75; this includes in-home assembly and packaging waste removal. For an additional $50 (a total charge of $125), White Glove personnel will also remove the customer’s old mattress.

Delivery Policy: The delivery policy for Eight mattresses is as follows:

  1. All Eight mattresses are made to order. Most purchasers receive their mattress within seven to 10 business days. Eight Sleep couriers do not deliver on weekends.
  2. Eight Sleep will send purchasers a tracking number as soon as the mattress ships. Customers should note that the manufacturing process can take up to five business days. Those who do not receive a tracking number after five business days should contact Eight Sleep via email.
  3. Eight Sleep does not schedule deliveries or allow customers to request a delivery date.
  4. Customers who need to change the shipping address after the order has been completed should email Eight Sleep as soon as possible. Additional charges may apply if the mattress has already shipped.
  5. Customers do not need to be at home at the time of their mattress delivery, and will not be required to sign for their package. For this reason, Eight Sleep does not ship mattresses to Air/Army Post Offices (APOs), Fleet Post Offices (FPOs), or P.O. boxes.

Old Mattress Removal: Old mattress removal is available as part of Eight Sleep’s White Glove delivery. The charge for old mattress removal is $125.

Company Information

Customer Service

8 out of 10 owner experiences show customers have had a positive experience with Eight Sleep, irrespective of whether or not they liked their mattress.

Company History

Morphy, Inc. was founded in 2014; the company changed its name to Eight Sleep in 2015. The Sleep Tracker was previously sold under the name ‘Luna Sleep’.

Physical Stores

Eight Sleep operates one brick-and-mortar showroom in New York City, but the company does not own any physical stores.

Contact Eight Sleep

[email protected] |1-888-848-9085 | EightSleep.com

Find Eight Sleep on Social

Facebook  |  Instagram  |  Twitter

Other Eight Sleep Products

Eight Sleep currently only offers mattresses and their Smart Tracking cover.

How Do Eight Sleep Mattresses Compare to Other Beds?

As any consumer does with a product they’re considering, our mattress assessments naturally involve comparing them with other similar products. Be it composition, firmness, or price, we think it’s important to see how the Eight Sleep mattresses stacks up to other beds.

Eight Sleep mattresses are all medium firm mattresses and differ in feel largely by composition with the Mars+ feeling more like a hybrid than a memory foam mattress. The Smart tracker is very unique and a terrific option for a lot of sleepers. Check out our selections below if you’d like to see a few comparable mattresses.

Similar mattress options

New PurpleAlexander HybridLeesa MattressThe Sapira
MODELS New PurpleAlexander HybridLeesa MattressThe Sapira
MATTRESS TYPE HybridHybridFoamHybrid
PRICE (Queen) $1599-$2799$1,199$995$1,475
FIRMNESS OPTION NPlush, Medium, Luxury FirmNN
AVAILABILITY onlineonline, in-storeonline, in-storeonline
SLEEP TRIAL 100 nightLifetime (50% exchanges after 100 nights)100 night100 night
WARRANTY LENGTH 10 yearLifetime10 Year, Limited10 Year, Limited
BUY BUY NOWBUY NOWBUY NOWBUY NOW
Full mattress options chart