springwall spa 10 firm smooth top queen rv mattress in a boxEnjoy restful nights with the Springwall Spa 10 mattress in a box. As soon as you lie down, firm and steady support helps your body rest in a natural position. The surface feels secure yet comfortable, so you can trust it to support you evenly all night. Supportive foam layers ease pressure where your body needs relief most. A smooth top offers a clean and simple feel that encourages quiet relaxation. Breathable fabric cover allows air to flow through