Review · Home & living
SweetNight CoolNest Memory Foam review
SweetNight's cooling memory foam bed with a 3D knitted cooling cover, phase-change foam and 5-zone support.
By the HearSmart research desk · Updated November 11, 2026
- Performance (40%)
- 8.4
- Ease of use (25%)
- 8.2
- Value (35%)
- 8.3
SweetNight CoolNest is the cooling pick for Amazon shoppers who wake up warm. SweetNight builds the 14-inch version from seven layers, starting with a 3D knitted cooling nylon cover that it says has over 20,000 micro-pores per square centimeter, then PCMflux high resilience foam with phase-change material and gel particles, then cooling gel memory foam, adaptive comfort foam, transition foam and a high-density support base. The brand calls the support layout 5-zone. On sweetnight.com the queen was listed at $399.99 when we checked on November 11, 2026, with free U.S. shipping, a 100-night trial and a 10-year warranty, and the product page said in-stock beds ship in 1 to 2 business days. SweetNight sells on Amazon too, but its Amazon range includes models such as the flippable 10-inch Whisper, so match the model name before you compare prices.
Who it is for
hot sleepers
Price
Queen $399.99 on SweetNight's store when checked; Amazon prices differ.
CoolNest® Memory Foam Mattress All-night cooling with 5-zone support Queen $399.99
Quoted from the vendor pricing page on November 11, 2026.
Key features
- 3D knitted cooling nylon cover with over 20,000 micro-pores per square centimeter
- PCMflux high resilience foam with phase-change material and gel
- 5-zone ergonomic support design
- Heights of 12, 14 and 16 inches
- 100-night trial, free U.S. shipping and 10-year warranty
Strengths and weaknesses
- Strength: Most cooling features of any bed on this list
- Strength: SweetNight's store said beds ship in 1 to 2 business days
- Strength: Buy 2 deals took an extra 15% off when checked
- Weakness: Queen costs $70 to $100 more than Siena, Zinus or Novilla
- Weakness: The 12-inch version was sold out in twin when checked
- Weakness: SweetNight's Amazon range uses different model names, such as the Whisper
Key facts
- Brand-store queen price: $399.99 when checked
- Heights: 12, 14, 16 in
- Support: 5 zones
- Trial: 100 nights
- Warranty: 10 years
Where it ranks
SweetNight CoolNest Memory Foam is No. 7 in our Best Mattresses on Amazon verdict.
Alternatives we scored
Visit sweetnight.com · Questions or corrections: editorial@hearsmart.org