Polysleep Sierra Mattress
Best supportive foam mattress for side and back sleepers.
This is a balanced hybrid that prioritizes support without sacrificing the plush, sinking feeling of memory foam. It manages to keep you cool and stable throughout the night, though those who prefer an ultra-firm, traditional coil feel might find the contouring a bit too pronounced for their liking.
$580.00
at
Sleepopolis
More Sierra options
Who it's for
- Allergy sufferers seeking a more hygienic and hypoallergenic mattress
- People who struggle with mobility or prefer sitting on the bedside
- Hot sleepers needing breathable materials to prevent overheating
Who should skip it
- Light sleepers easily disturbed by a partner's movements
- Side sleepers who prefer a plush, sinking sensation
- Individuals sensitive to chemical odors during the initial setup period
Performance breakdown
Motion isolation
Foam layers effectively dampen movement, keeping partners undisturbed all night.
Edge support
Solid enough for sitting, though slight compression occurs at the perimeter.
Temperature regulation
Breathable cover and open-cell foam prevent heat buildup during sleep.
Pressure relief
Contours well to shoulders and hips, reducing aches for side sleepers.
Responsiveness
Quick recovery time makes changing positions feel effortless and fluid.
Firmness consistency
Provides a balanced, medium-firm feel that suits most sleeping positions.
Key Specs
Thickness
9 inches
Material
Foam
Firmness Level
6/10
Certifications
CertiPUR-US
Warranty Length
5 years
Trial Period
100 nights
Cooling Feature
Yes
Motion Isolation Feature
Yes
Edge Support Feature
Yes
Pressure Relief Feature
Yes
What Reviewers Say
Know before you buy
Still have a question?
Ask Metto anything about the Polysleep Sierra Mattress before you decide.
