Original price: $879.99
Discount price: $710.59 （19% off）
Discount Start Day: 2026-10-06 00:00 PDT
Discount End Day: 2026-10-09 00:00 PDT
Upgraded Cooling From the First Touch: The Sweetnight CoolNest Ultra 14 inch king mattress is designed for hot sleepers with a premium cooling ice silk fabric cover and a multi-layer temperature-regulating system. It helps create a refreshing sleep surface from the moment you lie down, making this king size memory foam mattress feel fresh and comfortable for a more restorative night's sleep
5-Stage Temperature-Regulating System: Beyond basic foam construction, this mattress king size design combines ice silk fabric, double PCM phase-change comfort foam, breathable mesh-cut memory foam, a thicker gel-infused memory foam layer, and 3D open-channel airflow layers. Together, they help move excess heat away, giving this king memory foam mattress a fresher, less stuffy sleep surface.
Breathable Design for Fresher Rest: A newly added mesh-cut memory foam layer with up to 6X the airflow of regular memory foam works with a 3D open-channel structure to encourage airflow through the mattress. This breathable design helps reduce heat buildup while contouring to shoulders, hips, and legs, making this king size cooling mattress a strong choice for warmer sleepers.
7-Zone Targeted Full-Body Support: Refined 7-zone ergonomic foam cushions lighter areas and reinforces heavier zones, promoting balanced head-to-toe support and natural spinal alignment. The thicker gel-infused memory foam layer adds enhanced cushioning above a stable core, helping this king size mattress memory foam option support restful comfort and a refreshed morning feel.
Enhanced Stability Support Foam: A key upgrade from CoolNest Pro, Enhanced Stability Support Foam adds a stronger, more durable base layer for steady comfort, long-lasting shape retention, and reliable high-support performance. This king mattress in a box also helps reduce motion transfer, while CertiPUR-US certified foams and an anti-slip base support everyday use. [ Shop Now ]
