A type of occasional bed with a three-part metal frame which folds up for storage; (also more generally) any of various types of portable folding bed; cf. Z-bedn.
A proprietary name in the United States.
1954
Their latest ‘convertible’ is the Zedbed, which costs 9½ guineas, and which will be in the shops within the next few weeks.
Irish Times 6 May 8/3
1970
Double zedbed,..size 6 ft. 2 ins. × 3 ft. 10 ins. wide.
Kay's Catalogue Autumn–Winter 654/2
2003
The zed-bed has been superseded by the sofabed and the futon because they double up as functional bits of furniture.
A type of occasional bed with a three-part metal frame which folds up for storage; (also more generally) any of various types of portable folding… A proprietary name in the United States.