This 12-inch Full Mattress Delivers Plush Comfort and Full Support Look forward to a full eight hours of delightful dreams with this 12-inch spring full mattress. The plush comfort mattress is designed by Night Therapy for blissful nights. The mattress features 12-inch coils that act independently to give you fully customized support. The iCoil system also works to reduce annoying motion transfer. The mattress features a Euro box top that combines quilting, soft foam and fiber padding to up the ante on cushy sleep-time. The iCoils and box top both help create a healthily even sleeping surface to keep sensitive spines happy. The 12-inch full mattress is 54 inches wide and 80 inches deep. Weighing 96 pounds, the mattress comes with an easy set-up system: Just remove the box while on top of your bed, unroll the mattress, and adjust it to fit. In a fresh off-white, the Night Therapy mattress is made of polyester and comes with a three-year limited warranty to guarantee your sleeping satisfaction.