US
Sweetnight

Sweetnight CoolNest Ultra Memory Foam King Mattress 14 in

  • King size, 14 inch memory foam
  • Medium plush, 5 layers
  • Gel memory foam comfort layer with PCMflux foam
  • 7-zone full-body support
  • 100-night trial
  • CertiPUR-US certified, ACA endorsed
  • 101.4 pounds, 80 x 76 inches

Updated 23 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A medium plush king memory foam mattress with temperature-regulating foam, zone support and a trial period. The listing gives no warranty term or weight rating.

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ASIN: B0HFHGV24FCategory: Mattresses

Colors Available

Dark Gray

Sets Available

12 Inch16 Inch

Sizes Available

Queen (U.S. Standard)

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Overview

A gel memory foam comfort layer rests on high-density foam in a five-layer build, wrapped in a silk cover with a tight top. Zone support and a stable core are meant to hold the body level.

The reason to consider it is the pressure relief and low motion transfer from layered memory foam, backed by certifications and a trial. The limitation is the missing warranty term and weight rating.

Who it's for

Couples or restless sleepers on a king frame, wanting foam that absorbs movement, match this mattress. Heavier sleepers who need a stated maximum load, or anyone who likes a spring feel, should look elsewhere.

Pros and cons

Pros
  • Low motion transfer
  • Temperature-regulating foam layers
  • Pressure relief from gel memory foam
  • Works on box spring, slats or foundation
Cons
  • Weight capacity not listed
  • Medium plush feel only
  • Heavy to maneuver alone

Performance notes

Memory foam conforms to body shape and absorbs motion, so movement on one side is less likely to reach the other. Gel memory foam and temperature-regulating PCMflux foam aim to carry heat away from the sleeper. The layered core underneath supports the hips and shoulders in zones.

Specifications

BrandSweetnight
Dimensions & fit
SizeKing (U.S. Standard)
Dimensions (L x W x thickness)80 x 76 x 14 inches
Item weight101.4 pounds
Construction & materials
Mattress Comfort Layer MaterialGel memory foam
Cover MaterialSilk, tight top
Compatibility & installation
Mattress base compatibilityBox spring, slatted base, solid foundation
Included components
Included ComponentsMattress, instruction manual, mattress opener
Other details
Item Thickness14 incheshigher than 86% of 37 mattresses
Item Firmness DescriptionMedium plush
Number of Layers5
CertificationsCertiPUR-US, ACA endorsed
Trial period100 nights

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Frequently asked questions

Will the Sweetnight CoolNest Ultra King fit a standard king frame?

The listing gives King (U.S. Standard) at 80 by 76 inches and 14 inches thick. Check the frame's inner dimensions against those figures.

What bases can the CoolNest Ultra King sit on?

The specs list a box spring, a slatted base and a solid foundation as compatible.

What comes with the CoolNest Ultra King?

The specs list the mattress, an instruction manual and a mattress opener.