by Zipcode Design. We cannot guarantee the availability of the suggested Daybeds. Landen Collection Frame Material Details Steel Recommended mattress 38. 5 W x 74. 75 L Seat 14 H x 74 W x 38 D. H 8 from floor to top of side rails 15. 75 Daybed Gunmetal Gray Twin Metal Steel Slats Included Modern & Con.