Fig 1. Sex differences in objectively quantified sleep.

Abbreviations: TIB = time in bed, SOL = sleep onset latency, TST = total sleep time, LS = light sleep, SWS = deep / slow wave sleep, REM = rapid eye movement sleep, REML = REM latency, SE = sleep efficiency. Blue bars represent men, green bars women. Data is based on 37 male and 19 female junior endurance athletes. Whiskers represent standard deviations. * Represent significant differences between the sexes at p < .05.