Abstract: A bed structure which is primarily intended for use in an extension of the body of a motorhome extending over the cab of the motorhome can be constructed so as to utilize a support holding a mattress pad so that they are capable of being manipulated between normal use positions in which the support and the pad serve as a normal part of the bed to another non-use position in which both the support and the pad are located above another second support of the bed. This second support holds a second pad which is constructed so as to coact with the first pad on the first support so as to fit on top of the first pad when the first support and pad are shifted to the non-use position above the second support. A strap is provided for returning the second pad to its normal position when the first support and the first pad are moved back to their normal positions.