[Twin Daybed with Trundle] This metal daybed with trundle is in twin size, the main bed and the trundle bed can both fit a standard American twin mattress. For optimal comfort, we recommend the daybed and the trundle bed can accommodate standard twin size mattresses (not included) with a thickness of 6 inches.It is a multi-functional piece that is ideal for small living spaces. Twin Daybed Dimensions: 78.1" L x 41.6 " W x 33.7" H. Twin Trundle Dimensions: 75.6" L x 39.3" W x 4" H. [ Sturdy Metal Day Bed Frame ]This twin-size metal daybed with pop up trundle is manufactured with heavy-duty steel for extra strength and stability, strong bedstead and manufacturing experience can avoid noise, vibration and scratches. Both the main bed and the trundle bed have a weight capacity of up to 330 lbs, making it suitable for adults, teens, boys, and girls alike. Space-Saving Daybed Trundle: The twin bed with trundle ideal for accommodating guests, especially with its roll-out trundle. Designed for compact storage and expandable convenience; Doubles as a guest bed, and perfect for living room, guest room, bedroom, and small spaces or shared bedrooms for siblings.Trundle includes SIX (6) casters - 4 locking and 2 non-locking. Hassle-free Assembly: All the tools, hardware, and detailed instructions with numbered parts are included to facilitate a quick and easy assembly; Saving you time and hassle.