simple bunk twin/twin xl murphy wall bed  product dimensions: closed: 83.8” h x 84.3” w x 14.5” d, open: 72.3” h x 84.3” w x 43.8” d. weight limit: top bunk - 150 lb, lower bunk - 200 lb. top bed includes guard rails for extra safety. metal ladder is included for easy access and added support. slatted mattress base for extra comfort. headboard and footboard keep mattress and bedding in place, and conceal them from the view when bed is closed. fits up to 6” thick twin or twin xl size foam mattress. exceptional construction with highest quality eco-friendly materials. all materials meet stringent requirements for safety and health standards. maximum mattress height is 6 inch. memory foam mattress recommended. mattress is not included. this wall bed must be secured to the wall. the bed needs to be anchored to the wooden or metal studs, concrete or brick wall. sheetrock/drywall mounting brackets are included.