Lull - Memory Foam Mattress | 3 Layers of Premium Memory Foam, Therapeutic Support, Breathable for Ideal Temperature, 100 Night Trial, and 10-Year Warranty MADE WITH TOP QUALITY MEMORY FOAM - Lull's three-layer mattress gives you the perfect combination of comfort and therapeutic support. Whether you sleep on your back, front, or side, each layer of foam works together to give you an enjoyable night of sleep. The Lull Mattress supports and cradles your body to provide healthy spinal alignment while you sleep. BREATHABLE FOR RELAXED COMFORT - Lull's 1.5" viscoelastic memory foam top layer features a gel polymer injection. This design transfers heat away from your body by dispersing it throughout the mattress. This mattress's breathable fibers and open cell foam structure promote improved airflow to keep you cool at night. SHIPPED DIRECTLY TO YOUR DOOR - No need to rent a truck to get your mattress home from the store. The Lull Memory Foam Mattress ships to your home in a polybagged, air-sealed package that expands when opened for a simple set-up. LONG LASTING DURABILITY - The 7" core support layer stays supportive due to it's high-quality polyurethane foam. This layer adds strength, durability and structure to the mattress to prevent sagging. Lull uses only the best foams to ensure your mattress provides an exceptional sleep experience for years to come. 10-YEAR WARRANTY & 100 NIGHT TRIAL - Lull is confident their memory foam mattress will provide you with years of comfortable and restful sleep, because their mattress has endured rigorous independent testing. Every mattress purchased on Amazon comes with free Returns within 100 Days of Receipt of Shipment.