Eight Smart Mattress Review
A reactive-foam hybrid mattress that bakes Eight's smart cover technology, sleep tracking, dual-zone warming, and a smart alarm, directly into the bed.
The Eight Smart Mattress can keep you cool or warm you up. Sleepers can adjust temperatures for each side of the bed.
Our reviewerA Mattress That Thinks Like Its Cover
After reviewing the Eight Sleep mattress cover, Eight took the logical next step and built its own mattress around the same technology. The result carries a 6-out-of-10 firmness, built on a reactive top foam that reacts like latex but feels like memory foam, bouncier than typical foam beds.
Support comes from a unique cell structure layered over 4 inches of high-density foam, and we measured 2 inches of sinkage, right in line with what we'd expect at this firmness level, giving comfort without giving up support.
Heat management stood out. The top layer is purpose-built to stay cool, and the mattress also includes a genuine warming feature, letting couples dial in separate temperatures for each side of the bed. We found no off-gassing complaints beyond the faint, quickly-dissipating smell typical of any foam mattress unboxing.
What sets the Eight Smart apart is the smart layer built on top of the comfort layers: home integration with your bedroom's lights and temperature, nightly sleep tracking, dual-zone bed warming, and a smart alarm, features that used to require buying Eight's mattress cover separately.
Why We Love It
- Reactive top foam gives a bouncier feel than typical memory foam beds
- Dual-zone warming lets couples set different temperatures on each side
- Home integration, sleep tracking, and a smart alarm are built into the mattress itself
- Free shipping, 100-night trial, and a 10-year warranty
Considerations
- At 6/10, the firmness may be too firm for sleepers who prefer a plush, soft-sink feel
- The temperature and sleep-tracking features assume you're comfortable with a smart, connected mattress
Sleeping On the Eight Smart
The top 2 inches of reactive foam gave a noticeably bouncier response than the memory foam beds we've tested, without losing the pressure relief foam is known for. Sinkage measured about 2 inches, enough to feel cushioned without sinking too deep.
The cooling promise held up: the specially designed top layer kept the surface from trapping heat, and the built-in warming feature meant each side of the bed could be set to its own temperature, a genuinely useful feature for couples who disagree on how warm the bed should be.
Smart Features Built Into the Bed
Home integration, nightly sleep tracking, and a smart alarm, features that used to live only in Eight's separate mattress cover, now come built into the mattress itself.
We Recommend This To Readers Who:
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Struggle with a distracting sleep environment
Light sleepers who have trouble with their sleeping environment are a strong fit.
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Want control over temperature, light, and sleep tracking
Built-in smart features let you dial in a unique sleep setup.
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Are comfortable with connected, tech-forward products
The Eight Smart is built for customers who are a bit more tech savvy.
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Prefer a slightly firmer bed
At 6/10, it suits sleepers who like more firmness than a typical memory foam mattress.
A Closer Look
How the Eight Smart Is Built
Four foam layers sit beneath a technology-embedded cover that tracks sleep and manages temperature.
Mattress Cover
The technology layer that tracks your sleep, warms the bed, and connects with smart home devices.
Top Layer
2 inches of reactive foam blending the feel of latex and memory foam for softness with bounce.
Bottom Layer
4 inches of high-density foam providing the mattress's core support.
Eight Smart Mattress Pricing
Pricing lands in the average range for a mattress-in-a-box, with a discount code available at checkout.
| Option | Price |
|---|---|
| Full | $950 |
| QueenPopular | $1,050 |
| King | $1,150 |
| Cal King | $1,150 |
Good to Know
A Smart Mattress That Earns the Name
The Eight Smart Mattress takes everything that made the Eight Sleep cover popular and bakes it directly into a genuinely comfortable, well-supported bed, an ideal blend of softness and support for tech-forward sleepers.
