"Disturbed sleep is a predictor of accidental death at work."
This study of the association between sleep and fatal occupational accidents concluded that “self-reported disturbed sleep is a predictor of accidental death at work.” Accidental death was nearly twice as likely in subjects who reported difficulty sleeping in the previous two weeks.
A prospective study of fatal occupational accidents -- relationship to sleeping difficulties and occupational factors.
J Sleep Res. 2002 Mar;11(1):69-71.