The Full Stearns & Foster Estate Ultra Firm Mattress is a luxurious innerspring mattress designed for ultimate comfort and support. With a thickness of 13.5 inches and 1288 steel springs, this mattress offers a firmness level of extra firm, perfect for those who prefer a more rigid and supportive mattress. Featuring cooling technology, microcoils, air vents, edge support, and adjustable base friendly, this mattress is not only comfortable but also highly breathable, making it ideal for a bedroom setting. This mattress is a high-quality choice for those seeking a premium sleep experience.