Folkard S, Condon R, Herbert M
Experientia. 1984 May 15;40(5):510-2. doi: 10.1007/BF01952412.
12% of night nurses surveyed claimed to have suffered from a totally incapacitating paralysis that may be related to sleep paralysis, and contribute to impaired levels of safety on the night shift. The incidence of this paralysis is shown to be age-related, largely confined to the early hours of the morning, and to increase over consecutive night shifts.
