i had a stroke last july 08 and still sleep lotz my Dr, call this brain reorganization, whether they are just calling it that or not i'm not sure but it makes sense and so when i'm getting sleeply i will tell my company or family i need to go reoranize my brain and they are very good about it. and as i recall in the first few month i did have shortness of breath and it was something to do with my brain and oxegen and it was not a big issue i was told. don't take my words for it please by all means check it out but, i'm 46yrs old and i do recall that conversation. best to your dad!
Hi
Sorry to hear about your dad :(
Sleeping a lot is quite common following a stroke, it's when our brains heal. Also it is a way of havin a break from too much stimulation from the surroundings. The fatigue you get from stroke is like nothing I have ever felt before, including working for 31 hours straight. So let him rest when he needs to & do things when he can.
Don't know about the oxygen, perhaps you could ask his doctors.
HTH
Sue