Kingston Hybrid Luxury Extra Firm Mattress Experience a healthier, Colling sleep with the Hybrid Kingston Luxury Top Plush Euro Top Plush Mattress! This top-of-the-line mattress features a cooling cover, 25% thicker coils for improved pressure relief, and a 3" support foam base for an optimal sleep surface. Enjoy the comfort and luxe feel of this mattress and wake up feeling refreshed. Mattress Highlights: Comfort level: Extra Firm Cooling Cover: cooling technology for better temperature control. 15-year-prorated warranty. 2 Full Layers High-Density Super Soft Foam 1 Full Cool Gel Layer 2 Full Layers High Density Support Foam Do Not Include Foundation Item Description: King Mattress Queen Mattress Full Mattress Twin Mattress