No, he is not sleeping! Sometimes he does make funny sounds while digging on the blanket, but now he just will sit there and whine or make a little shreik.
It is so sad! If I pick him up to comfort him, he just wants to jump back down to his warm bed, so it isn't a whine to be picked up. It is hard to explain, not really a whine, but a very sad sound and sometimes a frustrated sound.
Do you think he could be bothered by his degrading vision, and it bothers him more at night? I don't know why he just won't sleep like normal. (3am etc)