· 180-NIGHT HOME TRIAL and 10 YEAR MANUFACTURER WARRANTY - Rest easy with a Siena mattress. You'll enjoy a 180-night home trial, and we stand by our product – if there’s any defect or flaw in your Siena in the first 10 years, we'll replace or repair it for free.· GEL MEMORY FOAM MEETS SPRINGS - Siena Hybrid combines an inch of CertiPUR-US Certified gel memory foam with innerspring coils for contouring support and boosted breathability. Siena doesn’t compromise on comfort. We might cost a lot less than our competitors, but your Siena mattress sure packs a punch when it comes to responsive comfort, supporting proper spinal alignment, and relieving pressure points.· FIRM and SUPPORTIVE - Finding the perfect firmness is a breeze with the Siena. We created a firm version of our hybrid to cater to sleepers who love firm support from their mattress without sacrificing comfort.· EXCELLENT EDGE SUPPORT - Siena Hybrid is constructed with 7” of individually-wrapped, sturdy wire coils with three rows of edge support on all four sides.· SIMPLE TO SET UP - Just move the box to the room you want to use it in, unbox and unroll your mattress, and watch it expand before your eyes. Your Siena will be snooze-ready in 24 hours.· SAFE & FIBERGLASS FREE - Your Siena mattress is made without ozone depletors, mercury, lead, formaldehyde, phthalates and other harmful substances that can be in consumer products