Experience the trusted comfort of Serta with Serta® Clarks Hill. Featuring a soft, breathable cover, PillowSoft® Aire foam, and an 800-density coil support system, this mattress helps you sleep comfortably and wake ready to ease into your day. With 3 zones for lower back support, this mattress balances cool breathability with responsive support for a classically comfortable rest.Breathable Cover A soft, breathable cover helps you rest and wake refreshed3 Zoned Body Support offers 3 separate zones to provide lower back support for classic comfortThis 800-coil density system provides contouring, cradling support and minimizes motion transferThreshold delivery: the mattress is delivered into the first door of the address or lobby of an apartment or condo. It does not include haul away or set up.CertiPUR-US(r) Certified