TheraFirm ET Mattress is a high-quality mattress designed to provide you with the utmost comfort and support for a restful night's sleep. The first notable feature of the TheraFirm ET Mattress is its knitted quilted fabric. This fabric is not only soft to the touch, but it also adds an extra layer of comfort and luxury to the mattress. The TheraFirm ET Mattress also features ultra H. D. cotton felt, which adds an extra layer of cushioning and support. This cotton felt enhances the durability of the mattress, ensuring that it can withstand years of use without losing its shape or support. To maximize the sleeping surface and prevent sagging, the TheraFirm ET Mattress is equipped with foam encasement. This feature ensures edge-to-edge support, allowing you to utilize the entire surface of the mattress without any discomfort or instability. In conclusion, the TheraFirm ET Mattress is a top-of-the-line mattress that combines comfort, support, and durability. With its knitted quilted fabric, pure and soft PU foam, ultra H. D. cotton felt, bonnel spring structure, power cool H. R. foam, foam encasement, and 5-year warranty, this mattress is designed to provide you with the best sleep experience possible. Say goodbye to restless nights and wake up feeling refreshed and rejuvenated with the TheraFirm ET Mattress.