It's 2 a.m. The house is quiet, cloaked in the stillness of the night. Then, a shuffle. A door creaks. A child walks down the hallway, eyes wide open but fast asleep. Elsewhere, someone mumbles ...

The medical term for abnormalities that occur during sleep is “parasomnia.” The Alaska Sleep Clinic says behaviors such as sleep walking, sleep talking, sleep eating, nightmares, night terrors and ...