The Signature 13" Queen Sleep Mattress ensures you sleep in the utmost comfort. This mattress features 13 inches of the best materials used in the industry; starting with its 744 tempered steel independently-encased coils; a plush top that wraps around the curves of your body; and a satiny smooth ticking made of rayon from bamboo. Providing full support for your body; this bed is the ultimate retreat. 744 individually wrapped coils. Made of foam; polyester and tempered steel coils.