Would crib or bassinet sheets work? I know you made the beds yourself and a quick sheet change is genius. Wondering if either of those sizes would fit to make one less job for you.
Unfortunately no. The beds are 2'x4' so about 4" narrower than a crib mattress and Rivers is 2" thinner. Initially I had bought a $50 crib mattress for Jack. It did not hold up AT ALL to dog use. Now they have sofa cushion replacement foam which comes just 2' wide.
It won't take much to make the sheets really. Just cut a few inches bigger than needed and sew the corners then a pocket/channel all the way round for the elastic to go in.
Taking a deep breath while the other 4 dogs try and calm down. They are not pleased that I came back without River. They keep hitting the window and barking at my car.