no longer be in tension and the frame 20 is no longer rigidly configured in this configuration the frame 20 may be folded and stored in a convenient fashion referring to fig5 the mattress 14 may be formed of fabric enclosing a padding material the side 50 opposite the side 52 fig5 may include a pair of catches 46 which mate with a pair of catches 48 on an end of the side 50 as shown in fig6 in this way the mattress 52 may be rolled up as illustrated in fig7 and the mattress ends may be connected to one another in other words the frame 20 may be folded up inside the cover 12 situated within the mattress 14 and the whole assembly may be connected together in a shape comparable to that of a sleeping bag referring to fig8 each of the flaps 18 of the cover 12 may fold over to be secured by buttons 54 or velcro as examples to the inside surface of each side 16 thus if it is desired to wash the cover 12 the buttons 54 can be unattached the frame 20 may be removed and the cover 12 may be washed the cover 12 may have an open box shape with flaps 18 arranged to fold over each side 16 the box shaped cover 12 may include a bottom 22 which supports the mattress 14.