Fell asleep during lunch today

Well, staying up late last night may not have been such a good idea. I live close enough to work that I can come home and make lunch, eat it while watching a 30 minute tv show, and get back to work within an hour. Today I came home around 1:00 (Lunchtime is any time between 11 and 2) and had some leftovers and watched an episode of How It Works. Well, I fell asleep in my chair, and didnt wake up till 4:30. Luckily my job is somewhat flexible about hours, as I am on call 24/7 and carry a pager and cell phone. If anything had really gone wrong, they would have called or paged me.