Who else can't sleep?

My mother-in-law is in her 80s and almost seems dazed at times - grief, I think.  My sister-in-law is taking the brunt of it and is so fragile but there's not a lot I can do for her except give her a shoulder to have a weep and talk.  I suspect lack of sleep is taking it's toll there as well.  I think that if I ever get to that stage, unless I can afford night nursing, I would opt for final days in a nice hospice with an opening window and garden outside (near the beach, perhaps).  I'll have to put that on my list for old age (because I intend to get there) - retirement living, higher level care if necessary, then which hospice the kids send me to.  Having the palliative care at home was my father-in-law's wish and he doesn't even know where he is half the time.