Where can you purchase a rubber bed sheet?

Contact Gladys3 Marketing -- they sell old-fashioned, hospital grade (antibacterial) double-sided rubber sheeting for around $50 which includes shipping and handling. email Kmaster28@Comcast.net with the heading GLADYS3. I have purchased 5 of their units (self and other family members) and we are all delighted with their product and quick turnaround.