asleep.

There's nothing funny about narcolepsy. Those who suffer from the disorder have to worry about falling asleep while driving or operating heavy machinery. And woe to the narcoleptic smoker, who lives in constant fear of accidental self-immolation. When narcolepsy happens to cats, though, we can feel free to laugh. Because there's nothing an indoor cat does that would put it in danger if it suddenly zonked. It's either gonna fall asleep while it's eating or fall asleep while it's just lying there. Here, the latter is demonstrated to hilarious effect. More Sleepy Cat Videos ...

Photo: Flickr, danorth1 Bizkit the dog set the Internet on fire when he was captured running in his sleep before dopily catapulting himself headfirst into the wall, the adorable oaf. But let's get real: there are plenty of other equally deserving pooches deep inside the YouTube pipes whose candid moments of going the distance -- albeit in dreamland -- are just as precious, silly, and worth a hearty laugh. Here are some of our favorite videos featuring dogs running while asleep (puppies included!). ...