Flower, your story brought back the memory of when my brother was in hospital years ago. He was in a very special hospital bed ( because he had a large and nasty bedsore.) It was self inflating, and one day the mechanism went haywire. We visitors didn't notice at first, then realised that he was disappearing, his wife rang for a nurse who came running in and tried to put things right, she had to run out to get another nurse who managed to stop it. By then my brother looked like a rabbit peeping out of its burrow, and everyone was creased up with laughing so much. I had completely forgotten about it until I read your post. Now I'm sitting here laughing my head off.