Sexsomnia

I saw an episode of Special Victims Unit about "sexsomnia," the tendency to have sex while asleep. It appears to not only exist, but to be more common than you might think. Eleven percent of men and four percent of women referred to a sleep clinic reported this problem. The rates in the general population would obviously be much, much lower.

Night Owls > Early Birds?

A new study suggests that late risers (people who, left to their own schedules, get up around noon) outperform early birds (people who naturally get up around 5-6 am) 10 hours after waking (so, around 3-4 pm for early risers, 10 pm for late risers). Unfortunately for them, society is designed better for early risers. So there you go. We early birds are still better.

(Also, it seems like it would be hard to separate time of day from hours since rising. For example, most people's circadian rhythm takes a little dive during the afternoon, but people who have just recently gotten up may be better equipped to handle that.)