About this item BALANCE SUPPORT & COMFORT - 12 inch twin mattress is designed with individually pocketed coils and bamboo charcoal foam, which combines both softness and support. With a 3-zoned ergonomic pocket coils core ,without sagging or rolling off. BAMBOO CHARCOAL FOAM FOR REFRESH SLEEP - twin size mattress features bamboo charcoal foam, which helps to regulate moisture, odor and temperature so that you can ensure your mattress stays dry and breathable to enjoy more refreshing sleep. BREATHABLE & HEALTHY - twin bed mattress is quilted with a breathable fabric, soft to touch & skin-friendly. MOTION ISOLATION - The pocketed coils is wrapped in fabric, so that they doesn't transfer as much movement. The foam of transition layers can further mitigate motion transfer, so you are less likely to be disturbed by your partner's movement. FIT FOR MOST FRAMES- twin hybrid mattress fit all twin size frames, such as box spring, floor, slatted base, flat platform. Please allow 48-72 hours for your new mattress to fully expand.