When I was younger there always used to be the point in the night where I would get really slap-happy drunk (no, my parents weren't spiking my Kool-Aid!) and the slightest thing could set me off laughing. Jump ahead a half-hour or hour into the night, and if I was still up, the slightest thing could set me off crying. Then the next day, if I didn't get enough sleep I'd be grumpy and snappy -- definitely not my usual cute-kid self. Sure, I was young and childish then, and I've matured (?) since then, but my Mom who knew best then, and still does, as mothers often do, always says that I'm just not my "happy-camper" when I don't get enough sleep. Now it seems researchers