Review · Home & living
Cocoon by Sealy Chill review
A 10-inch memory foam mattress from Sealy with a medium, conforming feel and a phase change material cover.
By the HearSmart research desk · Updated November 10, 2026
- Performance (40%)
- 8.3
- Ease of use (25%)
- 8.5
- Value (35%)
- 8.0
Cocoon by Sealy Chill is Sealy's direct-to-consumer memory foam bed, and its selling point is temperature. Sealy describes a 10-inch mattress with a medium, conforming feel, built around its Perfect Fit memory foam, under a cool-to-the-touch cover infused with a phase change material that absorbs and spreads heat. Sealy says the foam absorbs movement to limit motion transfer, which helps couples. When we checked, a queen cost $919 and came with a free Sealy Sleep Bundle of two pillows, a sheet set and a protector valued at $179. Shoppers who want more bounce can choose the 12-inch Chill Hybrid, which adds over 900 individually wrapped coils and stronger edges. The terms are a 100-night trial, free delivery and a 10-year warranty. It ranks below Leesa and Siena on value: Nectar's 12-inch bed costs $220 less with a longer trial, and Sealy publishes fewer layer details than the budget brands.
Who it is for
Hot sleepers who want a big-brand memory foam bed with a cooling cover and a free bedding bundle.
Price
Queen $919 with a free sleep bundle when checked.
Protector ($179.00 Value) $919.00
Quoted from the vendor pricing page on November 10, 2026.
Key features
- Perfect Fit memory foam that adapts to body shape
- Cool-to-the-touch cover infused with phase change material
- 10-inch profile with a medium feel
- Hybrid version with over 900 wrapped coils
- 100-night trial and 10-year warranty
Strengths and weaknesses
- Strength: Cooling cover is the most specific heat feature among the foam beds here
- Strength: Free pillows, sheet set and protector were included when checked
- Strength: Backed by Sealy, a long-running mattress maker
- Weakness: $919 for a queen, more than Nectar's taller bed
- Weakness: 100-night trial
- Weakness: Sealy gives fewer layer thickness details than Lucid or Leesa
Key facts
- Queen price: $919 when checked
- Height: 10 in
- Feel: Medium
- Trial: 100 nights
- Warranty: 10 years
Where it ranks
Cocoon by Sealy Chill is No. 7 in our Best Memory Foam Mattresses verdict and No. 7 in Best Sealy Mattresses.
Alternatives we scored
Visit sealy.com · Questions or corrections: editorial@hearsmart.org