Kings Brand Copper Finish Metal Astoria Day Bed (Daybed) Frame With Metal Slats Kings Brand Copper Finish Metal Astoria Day Bed (Daybed) Frame With Metal Slats. The day bed is one of our newest daybed introductions and features a design and finish scheme which offers style and sophistication. The day bed will work well in any room setting. Accepts twin size mattresses, Includes platform with 7 metal slats, (No need for a box spring or separate bed frame.). The Mattress is not included it could be purchased separately. Dimension: 79"x 41.25"x 38H, Simple assembly required.