75 x 38 Inch Folding Bed with Mattress Twin Size Rolling Guest BedGel memory foam and supportive base foam provide ideal firmness Mattress retainers and non slip base can prevent mattress slippery 4 universal casters make it easy to move and store 2 lockable casters can keep the bed in place as needed Convenient folding bed is suitable for small spaces Heavy duty metal frame boasts metal slat support and secure triangle structure Elevated design for easy floor cleaning and enough ventilation Assembly needed SHIP