Because Hospital bed mattresses are not the same size as a king size, queen size, full, or twin- size mattresses, we have made provisions in our products offerings to accommodate these variations. So, the measurements of the hospital bed mattress, plus the depth of any topper on the mattress, are what you need to determine the sizes of the sheets you need. Our standard sheets in these category are offered in plain weaves with 300TC in 100% cotton composition to fit standard hospital Beds of (36″ x 80″ x 5-6″)