Oops another double posting. I used a panel as I have been given a load of them and I thought the colouring was muted enough to not show any stains if an accident occurs.
This one is a small one, 3' x 4', I will be making larger ones if required but I want to take it to the Renal unit first for their comments.
I tried it on for size, I am 5' 8" and a cuddly size 22 and I could tuck my feet in the pocket and it came up to my bust with a comfortable but not huge overhang on the sides, looked and felt right to me, but I am not the patient.