Sort-Of Insomnia

Is it insomnia if you wake up after five hours of sleep? We'd been out with William since 3:30pm this afternoon, and he was ready to go to bed when we got home around 8:30pm. The job fell to me to help get him to sleep, and I inadvertently led by example again, and was out by 9pm.

But I woke up again around 2am and spent an hour trying to fall back asleep before giving up. I've been websurfing & catching up on some facebook games for about 1.5 hours now and am finally starting to get tired again. Unfortunately, I've only got 2.5 hours until I have to wake up again and feed William, but maybe he'll sleep in himself (yeah, right).