optional trundle unit only works with twin size bottom bunk VS1368 ***INCLUDED IN THIS SET: (1)Cottage Collection Bunk Bed in Cherry (1)Cottage Collection Triple Dresser in Cherry (1)Cottage Collection Nightstand in Cherry (1)Cottage Collection Full Extender Unit in Cherry Features: Bunk bed comes with wood bolt-on side rails, two guard rails and a ladder Linens and mattress not included Purchase additional pieces within the set at a discount Trundle unit and full extension kit cannot be used together - trundle unit only works when bottom bunk is twin size! Mattress is optional; please select box to include in order Bunk Bed Optional Mattress Set offers two Twin mattresses (for twin over twin bunks FireBlocker Insulator system helps block the spread of flames to allow for extra escape time in the event of a fire Mattress is 6.5'' thick One For One Program: It's simple, for every tree Vaughan-Bassett uses, they replace. The Sustainable Furniture Council encourages a factory's raw materials to be transported from within 500 miles in order to cut its carbon footprint. Over 99pct of Vaughan-Bassett's lumber comes from within 500 miles, 80pct comes within 200 miles. By planting a tree for every tree used in both its domestically produced and imported furniture, Vaughan-Bassett is the leader in responsible furniture manufacturing. Color/Finish: Cherry finish Dimensions: Bunk bed dimensions: 75'' H x 82'' W x 44'' D Collection: Please Note: all Vaughan-Bassett products have some level of distressing; level of distressing varies depending upon the collection Warranty: 1 year warranty against manufacturer's defects: no flip, no rotate, non-prorated Disclaimer: Please Note: Optional Serta Mattress ships separately from bedroom furniture, and may arrive for delivery on an earlier or later date than bedroom furniture.