new queen mattress for sale in srirangam growell beds and furnitures trichy The mattress is typically made of memory foam, a viscoelastic material that contours to the body's shape in response to heat and pressure. This helps distribute body weight evenly, relieving pressure points and promoting proper spinal alignment. Beneath the memory foam comfort layer, there's usually a supportive core, which may consist of high-density foam or a layer of individually wrapped pocketed coils. This core provides the necessary support for the spine and helps maintain the mattress's shape and durability.