The Chime 12-inch queen memory foam mattress and base set takes "a good night's sleep" to a whole new level with a combination that delivers amazing support, pressure relief and comfort. The mattress contours to your body thanks to a thick layer of memory foam, supported by a super thick layer of firm support foam. This helps reduce motion transfer so you and your partner can enjoy undisturbed sleep. The mattress arrives in a box for easy setup. The adjustable base smoothly raises your upper body so you can sit up in bed or sleep in a partially inclined position (helpful for people who snore or experience acid reflux). Convenient USB charging is available in the remote control for connecting electronic devices.