King's Brand Bronze Finish Metal Annabella Collection Twin Size Day Bed (Daybed) Kings Brand Bronze Finish Metal Annabella Collection Twin Size Day Bed (Daybed). Easy to assemble; simply attach the back and sides to the top. Accepts twin size mattresses, Includes platform with 7 metal slats, (No need for a box spring or separate bed frame.). The trundle and the Mattress are not included it could be purchased separately. Dimension: 80" L 43" W 45" H See other picture for matching pieces that could be purchased separately.