Mattress layers include: 1.5" super soft foam quilted into the cover, 3" super soft foam, 0.5" high density foam and a 7.5" iCoil base * ICoil system includes hundreds of independent coils minimizing motion transfer * Bi-fold box spring simply unfolds and you lay your mattress on top; The steel frame provides maximum edge firmness * CertiPUR-US Certified * Limited 5 year warranty