(57) Abstract Objective 4 mattresses which do the form of specification time motion ourResident in by jointing, according to intended purpose various configurationssohuabetsuto alteration is offered. Constitution Head mattress 1, drum section mattress 2, trail sectionMattress ahead mattress 4 3 and foot sequential next dynamic unrestrictedIt is jointed. Vis-a-vis drum section mattress 2 head matsutoresu 1, trail section mattress 3, ahead mattress 4 foot suitable The time making move, by snapping and pile up, bet, foot lifting betsuto, foot extending lounge and foot lifting lounge, sohuaIt is possible to form the configuration which is suited for five intended purposes.
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