The top side is made with Hyper Low Friction Nylon Sliding material. Available with flaps on the top side. If needed the flaps can be moved and this way fixing the Master Turner lying on top of the Mattress Cover. The Cover has 10 cm Non-Skid surface along each side to prevent the Master Turner from sliding off.
The Perimeter can be extended with the Mattress Cover Extenders- see video below.
Always use with a Master Turner.