Keep Your Cool on Every Level Most mattress protectors are made of plastic, with a reputation for overheating during the night. Not ours. The GhostProtector uses a soft knit fabric that wicks moisture away and provides quiet breathability so you stay cool, calm and collected. Pairs beautifully with our cooling mattresses, lightweight premium sheets and cozy pillows for a comfortable sleep on every level. 2” GhostGrip elastic band encases your mattress for maximum stability.