Table 3.

Confusion Matrices of Each Device Setting by TIB Condition

			M10		H5		Oura
			Sleep	Wake	Sleep	Wake	Sleep	Wake
PSG	Sleep	6.5-Hour TIB	0.90(0.04)	0.10(0.04)	0.95(0.02)	0.05(0.02)	0.89(0.04)	0.11(0.04)
		8-Hour TIB	0.89(0.09)	0.11(0.09)	0.94(0.08)	0.06(0.08)	0.89(0.04)	0.11(0.04)
		9-Hour TIB	0.91(0.04)	0.09(0.04)	0.95(0.02)	0.05(0.02)	0.88(0.05)	0.12(0.05)
	Wake	6.5-Hour TIB	0.14(0.11)	0.86(0.11)	0.30(0.20)	0.70(0.20)	0.11(0.07)	0.89(0.07)
		8-Hour TIB	0.14(0.09)	0.86(0.09)	0.29(0.14)	0.71(0.14)	0.11(0.06)	0.89(0.06)
		9-Hour TIB	0.14(0.14)	0.86(0.14)	0.31(0.20)	0.69(0.20)	0.11(0.08)	0.89(0.08)

Notes: Mean (standard deviation) of proportions, referenced to PSG, of sleep/wake agreements. The classification accuracy of epochs into sleep or wake, specificities for sleep/wake categories; are highlighted in bold.

Abbreviations: M10, the default Actiwatch setting that uses a medium wake threshold with 40 counts per epoch with 10 immobile minutes for sleep onset and termination; H5, Actiwatch setting that has a higher wake threshold of 80 counts per epoch and 5 immobility minutes for sleep onset and termination; REM, rapid eye movement; TIB, time in bed; TST, total sleep time; WASO, wake after sleep onset.