Table S1.

Standardized effect sizes (ES) for chronic sleep restriction changes in physiological sleep parameters

	BL to SR1	BL to SR5	SR1 to SR5
TST	−4.57**	−4.31**	+0.46**
Stage 2	−3.83**	−3.44**	−0.10
Sleep Efficiency	+0.88**	+1.18**	+0.52**
REM (minutes)	−2.38**	−2.01**	+0.41**
SWS (minutes)	−0.41**	−0.14	+0.32*
SWE	−2.15*	−0.91*	+0.50*

BL, baseline sleep (10 h time in bed [TIB]); SR1, sleep restriction (4 h TIB) night 1; SR5, sleep restriction (4 h TIB) night 5; TST, total sleep time; SWE, slow wave energy during NREM sleep.

^*paired t-test P < 0.0006;

^**paired t-test P < 0.0001.