Drift into deeper, more restorative sleep with the Chime 12 queen size memory foam mattress, designed for anyone who wants pressure‑relieving comfort and reliable support night after night. A thick memory foam layer contours to your body, making it an ideal queen mattress with memory foam for back pain or for sleepers who toss and turn. Beneath it, ultra‑supportive firm foam helps minimize partner disturbance, so couples can enjoy uninterrupted rest. This queen mattress in a box arrives compressed for easy setup in bedrooms, guest rooms, or apartments. Simply unbox, unroll and allow up to 48 hours for full expansion.