Late-night snacks could pack on the pounds...

...although the study doesn't mention that they might give you weird dreams, too.

Midnight raids on the refrigerator may have worse consequences than indigestion -- a study in mice boosts the theory that when you eat affects whether the calories go to your hips or get burned off.

Mice fed during the daytime -- when they normally would be sleeping -- gained more weight than mice fed at night, Fred Turek of Northwestern University in Illinois and colleagues found.