Adjustable FALSE Adjustable Arms FALSE Arms FALSE Big and Tall FALSE Folding FALSE Lid included FALSE Overall Dimension 54.25 W x 75.5 D x 11.75 H Get a great night's sleep atop this body conforming, moderate firm mattress.The interior make up has pocket spring coils, high density foam, convoluted foam and fire retardant foam. Pocket spring coils are individually wrapped springs that act independently, providing superior movement isolation and support to the contours of the body of yours. The handles will help you shift the mattress around easily.This mattress is ideal for a platform bed or trundle. The mattress can also be put on adjustable bed frames. requires foundation or box spring with the use of a standard bed frame. Once you lower the plastic, the mattress will begin expanding! The mattress of yours is going to return to the authentic condition of its in two to five days.Enjoy sleeping