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