>6) she increased her sleep from 4-5 hours per night to 7-8 hours per night; This alone probably accounts for everything. My god, even a healthy person at 4 ho

>6) she increased her sleep from 4-5 hours per night to 7-8 hours per night; This alone probably accounts for everything. My god, even a healthy person at 4 hours of sleep is a mess. Doubling that is a major, major difference. The difference for me between 6 and 8 is like night and day, especially from a memory point of view. I can't imagine 4-5 for a long stretch, let alone as my regular sleeping pattern. I wonder if caffeine abuse is a factor here. I meet a lot of older folk who can drink 10+ cups of coffee a day. I really don't think they have that strong of a tolerance. I think it just props them for a while due to poor sleep and they get used to be being stimulated and cranky instead of addressing their sleep issues.