Three layers of comfort & support * Soft touch memory foam molds to fit you body"s every curve to relieve stress and pressure, minimizing tossing and turning * Yellow Support insert is a built-in lumbar support for your waist, lower back and hips to support the natural curve of your spine * Firm Blue Base provides overall support and prevents the mattress pad from bottoming out underneath you body"s weight * Backed by independent sleep studies, 3" Luxury Thickness