Eight Sleep Premium Mattress is an 11-inch, 5-layer, medium-firm mattress built for shoppers who want a steady feel within the Eight Sleep setup. In our testing, it felt quiet and easy to live with, but it did not deliver the plush sink or springier rebound that many hybrid mattresses give you.
Table of Contents
Product Overview
| Mattress | Overall Score | Pros | Cons | Ideal For |
|---|---|---|---|---|
| Eight Sleep Premium Mattress | 3.9/5 | Balanced support, good motion isolation, predictable feel | Limited bounce, average sitting-edge stability, 30-night trial | Back sleepers, combination sleepers, couples |
Final Verdict
In our testing, the Eight Sleep Premium Mattress worked best as a calm medium-firm option. It kept the surface level during position changes and did a good job muting partner movement. The trade-offs were straightforward: the feel is more steady than plush, the edges were only average when sitting, and the 30-night trial is brief.
-
Who It’s For
-
Back sleepers who want an even, supportive surface
-
Combination sleepers who change positions and do not want deep sink
-
Couples who care more about motion control than bounce
-
-
Who It’s Not For
-
Lightweight side sleepers who need more cushion at the shoulder
-
People who sit on the edge often and want stronger perimeter support
-
Shoppers who want more time than a 30-night trial gives them
-
How We Tested It
We used our How We Test Mattresses process to run the mattress through back, side, and stomach-sleep sessions to check support and alignment, then repeated those checks during longer stretches of reading and laptop time in bed. Our testing also looked at heat buildup across the first 30 minutes and through the night, pressure relief at the shoulders and hips, motion transfer during partner entry and position changes, ease of movement, edge stability during repeated sit-and-stand cycles, and whether the feel matched our firmness expectations over time.
Our Testing Experience
In our testing, the mattress stayed composed when we shifted from back to side. It resisted the slow sagging feel that can show up under the hips, which helped it feel cleaner and more stable for back sleeping and stomach sleeping. It also handled restless movement well, so one person’s turns were less noticeable on the other side of the bed.
The limits showed up in two places. Side sleeping felt serviceable rather than especially cushioning, especially around the shoulders, and the perimeter felt only average when we sat on it to get dressed or get in and out of bed. That makes the feel more functional than plush.
-
What we liked
-
Stable medium-firm support that avoids deep sink
-
Very good motion isolation for shared sleep
-
Consistent feel from night to night
-
-
Who it is best for
-
Average-weight back sleepers
-
Combination sleepers who move often
-
Couples sensitive to partner movement
-
-
Where it falls short
-
Side sleepers who need more shoulder relief
-
People who sit on the edge a lot
-
Anyone who wants fast, springy rebound
-
Pros & Cons
| Pros | Cons |
|---|---|
| Steady medium-firm support | Not plush enough for some side sleepers |
| Good motion isolation | Sitting edge support is only average |
| Predictable feel across the surface | Less bounce than many hybrids |
Key Specs
-
Price: $1,899 promo price; MSRP $1,999
-
Height: 11 inches
-
Construction: 5 layers
-
Firmness: medium-firm
-
Sizes: Full 53" x 75"; Queen 60" x 80"; King 76" x 80"; California King 72" x 84"
-
Shipping: free shipping
-
Returns: free returns
-
Trial: 30-night trial
-
Warranty: up to 5 years with qualifying Autopilot membership
Review Scores
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.2/5 | Kept hips and midsection lifted well in our tests. |
| Cooling | 3.5/5 | Mostly temperature-neutral, but not cool to the touch. |
| Pressure Relief | 4.1/5 | Good overall, though some side sleepers may want more shoulder give. |
| Motion Isolation | 4.4/5 | Movement stayed contained during shared-sleep tests. |
| Responsiveness | 3.7/5 | Easy enough to turn on, but not especially lively. |
| Edge Support | 3.4/5 | Solid enough near the edge when lying down, less convincing when sitting. |
| Durability | 3.9/5 | The feel stayed consistent through our testing window. |
Should You Buy It?
Eight Sleep Premium Mattress makes the most sense if you want a medium-firm surface and you prefer a quieter bed over a bouncy one. In our testing, it worked especially well for back sleepers, combination sleepers, and couples who wanted less motion transfer.
If you are lighter, sleep mostly on your side, or need more give at the shoulders and hips, a softer model will likely feel more comfortable. The same goes if you spend a lot of time sitting on the side of the bed.
For common alternatives, Helix Midnight gives side sleepers more cushioning, while Saatva Classic feels bouncier and sturdier at the edge.
Limitations
The main drawbacks in our testing were the firmer shoulder feel for some side sleepers, only average edge stability when sitting, and the 30-night trial. If you want a plush, sink-in top or you use the side of the bed as a daily sitting spot, this model will probably feel competent rather than ideal.
How It Compares
-
Why choose this mattress
-
Steady medium-firm support that stays controlled when you change positions
-
Better motion control than many bouncier beds
-
Simple, predictable feel without much adjustment
-
-
Alternatives to consider
-
Saatva Classic: more bounce and stronger edges.
-
Helix Midnight: softer cushioning for side sleepers.
-
TEMPUR-Adapt: deeper contouring and a slower, closer-hugging feel.
-
Practical Tips
-
Give it a consistent 7–10 nights before judging firmness.
-
If side sleeping feels firm at the shoulder, try a slightly thinner pillow before blaming the mattress.
-
Rotate the mattress regularly to help keep wear more even.
-
Use a breathable protector if you sleep warm.
-
For couples, test motion with real in-and-out-of-bed movement, not just quick drop tests.
-
Recheck your first impression after your body adjusts; early firmness often eases after a few nights.
FAQs
Does the Eight Sleep Premium Mattress feel firm or soft?
In our testing, it landed medium-firm: supportive first, with moderate contouring once you settle. Sleepers who need more shoulder cushion may find it firm.
Is it good for couples?
Yes. Movement stayed fairly localized when one person turned or got up, which helped the surface feel calmer for shared sleep.
Will it work for stomach sleeping?
For many stomach sleepers, yes. The support helped keep the midsection from dipping too much in our tests. Sleepers who want a softer top may find it too level.
