... buildings, household hot and cold pad, heat bags in health care field and use to, plastic-covered tunnel temperature insulation ... and contribute a good sleep.1,the cooling cushion /mattress/pillow is soft,comfortable,innoxious and scentle.2,internal material: ... material: PVC,TPU composite waterproof fabric 4,specification :cooling children pillow:30*15cm,20*35cmcooling mattress:45*90cm,90*90cm,90 ...