Missing Time

OK, I knew my body really didn't want to be on the night shift any more (despite having done it for the past month, so you'd think I'd be used to it by now), but I'm a little disconcerted by how, uh, aggressively it wanted to make the changeover. Friday afternoon I woke up at about 5:30 PM (a pretty normal time when I've worked the night before). I answered my e-mail, took a shower, ate a light meal, read 96 pages of A Fine and Private Place (excellent book, by the way)... and fell right back to sleep. At 10:30! In other words, I pretty much got cheated out of my Friday. And now I feel all disoriented and I have to keep checking to make sure what day it is. On the upside, though, I guess I'm pretty much set for the switch to evening shift next week...