PURPOSE: To provide a bed which can be assembled easily and used outdoors.

CONSTITUTION: A bed has sheet holding support bars 2 provided at the opposite edges of a sheet member 1 and a support leg portion 4 consisting of leg rods 3 disposed beneath the sheet member 1, the upper end of each leg rod 3 of the support leg portion 4 being located in the lower position of the support bars 2 when the sheet member 1 is stretched. A locking rod 5 is detachably provided at the upper end of each leg rod 3, and a holding locking portion 5A for holding and locking each support rod 2 in position from above is formed at the upper end portion of each locking rod 5, and an insertion hole 7 is formed in the portion of the sheet member 1 near the inside of the support bars 2 and above an insertion hole formed in each leg rod 3 to insert the locking rods 5.