Phase Change Material Mattress of 2026
Cooler-feeling sleep starts with a phase change material mattress. See how LIFE SKY's adjustable split-top design handles comfort and recovery in November 2026.
By Logan Foley
Updated November 6, 2026
Comfort, cooling, and independent positioning
Waking up warm or struggling to settle into a comfortable position can make a long night feel even longer. A phase change material mattress may help manage surface warmth, while the right layers can cushion pressure points without leaving your body feeling unsupported. The LIFE SKY 12 Inch Copper Memory Foam Mattress pairs a phase-change fabric cover with copper-infused memory foam and gel comfort layers, plus an adjustable split-top Queen design.
After carefully analyzing the listed specifications, this mattress stands out most for its independent head or leg positioning and pressure-relieving all-foam construction. That setup may be useful in a bedroom with an adjustable base, including during home recovery, but the product details don’t provide a firmness rating, foam density, edge-support measurements, trial period, or warranty terms. Those missing details matter if you need a particular feel, strong perimeter support, or clear purchase protection, so confirm them with the seller before ordering.
The manufacturer describes the cover as temperature-regulating and the copper foam as ventilated. Those features may support a cooler-feeling sleep surface, but they don’t guarantee that every hot sleeper will stay comfortable. All foam layers are listed as CertiPUR-US certified; the available details don’t specify the fire-barrier construction or confirm the mattress is fiberglass-free. If you are also comparing beds for stomach sleeping, see this mattress guide for firmer back support.
| Award | Product | AMG Score About AMG ScoreThe AMG Score is our own rating from 0 to 10, based on performance, design and build, ease of use, and value. It reflects independent research and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | |
|---|---|---|---|
| Best Overall |
LIFE SKY 12-Inch Split Top Queen Mattress
|
9.2/10 | Buy |
LIFE SKY 12-Inch Split Top Queen Mattress
Tailored for post-surgery recovery and adjustable bed setups, this 12-inch mattress uses an independently elevating split-top head section to ease joint strain. Its copper-infused foam and phase-change cover work together to disperse heat while maintaining consistent contouring support.
Pros
- Independent head adjustment suits different resting positions
- Copper-infused memory foam effectively relieves pressure points
- Phase-change cover helps maintain a cooler sleep surface
- CertiPUR-US certified foams ensure low chemical emissions
Cons
- Requires specialized split-top fitted sheets
- Offers minimal utility on traditional non-adjustable bed frames
- At nearly 68 pounds, solo maneuvering can be difficult
FAQs
Does the LIFE SKY mattress use phase-change cooling fabric?
Yes, its cover is described as phase-change cooling fabric. The product also lists ventilated copper-infused foam and gel comfort layers, which may help with airflow and surface comfort. No measured cooling results are provided, so temperature control can vary by sleeper and bedroom.
Can you adjust the head and legs independently?
Yes, the split-top Queen design is described as allowing independent adjustment on each side. This can offer separate positioning options for the upper body or legs, provided you use a compatible adjustable base. Confirm the base’s dimensions and split configuration before purchase.
Is this memory foam mattress suitable for post-surgery recovery?
The product description highlights adjustable positioning and pressure relief as recovery-support features. Copper memory foam and gel comfort layers are intended to contour to the body, but comfort and positioning needs vary. Follow your care provider’s guidance, and verify the adjustable base compatibility for your setup.
What firmness level and sleeping positions does it suit?
No firmness rating is supplied, so its feel on the standard 1-to-10 scale can’t be stated reliably. The memory foam layers are described as contouring, which may appeal to sleepers seeking shoulder or hip pressure relief. Side, back, and combination sleepers should confirm the feel and support details before buying.
Does the mattress have a sleep trial or fiberglass-free cover?
The available product information doesn’t specify a sleep trial, return terms, warranty, or fire-barrier materials. CertiPUR-US certification applies to the listed foam layers, but it doesn’t establish that the mattress is fiberglass-free. Ask the seller to confirm these details; for more buying context, review this memory foam and hybrid comfort guide.
About the author
Logan Foley is a Certified Sleep Science Coach and experienced mattress and sleep-product researcher. She has personally evaluated hundreds of mattress models, with expertise in comparing construction, comfort, support, materials and sleeper needs to turn complex product differences into practical buying guidance.