As shown in FIG 1, the upper and lower sheets 12 and gusset 14 of the known mattress 10 are sewn together with the sewn edge portions thereof covered with a cloth tape 16 without losing {HEAD ~ the outer appearance} of {TAIL ~ the mattress} as a whole 
of
As shown in FIG 1 , the upper and lower sheets 12 and gusset 14 of the known mattress 10 are sewn together with the sewn edge portions thereof covered with a cloth tape 16 without losing { HEAD ~ the outer appearance } of { TAIL ~ the mattress } as a whole
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH