★This bed is "customer assembled furniture"★ For "customer-assembled furniture," we ask that customers unpack, assemble, and install the product themselves. Flip-up storage bed with thin standard bonnell coil mattress Comfortable sleep for two The mattresses are separated, so one side vibrates This will not be transmitted and will not disturb each other's sleep. Can also be used separately The two beds are connected so they can be used separately. We can also help you redecorate your room. Large storage space An astonishing 1100L High quality Japanese made gas pressure cylinders Even women and elderly people can open and close it easily. It has passed the opening and closing test, so you can use it with confidence.