The present invention includes a mattress having a fluid based center portion encapsulated by {HEAD ~ a stablizing visco elastic polyurethane covering} adapted to prevent {TAIL ~ lateral or longitudinal movement} while a patient is disposed thereon 
adapted to prevent
The present invention includes a mattress having a fluid based center portion encapsulated by { HEAD ~ a stablizing visco elastic polyurethane covering } adapted to prevent { TAIL ~ lateral or longitudinal movement } while a patient is disposed thereon
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH