Why am I sleeping so much, far more than normal for me? Nothing about my diet or medications has changed. Within a 3-day period this week, I slept soundly for approximately 26 hours, and I have slept more normally since then except for an unexpected 2.5-hour nap this afternoon. Yes, I feel tired. I will be 76 next week. Usually, I sleep about 7 hours a night with a 1 to 1.5-hour nap in the afternoon.