Age differences in whole night sleep architecture.

Notes: TST, total sleep time; SE, sleep efficiency; WASO, time awake after sleep onset; SWS, slow wave sleep; REM, rapid eye movement sleep; Mdn, median; MAD, median absolute difference from the median; MRank, mean of ranks; W, test statistic for the Brunner-Munzel rank test; PS, probability of superiority (i.e., the probability of a young subject having a higher value than an older subject if one were to randomly select and compare one participant from each age group).*p**p***p