Table 5.

Mean bias between consumer devices and medical devices

	TST (min)	WASO (min)	Light (min)	Deep (min)	REM (min)	SOL (min)	NAWK (count)	SE (%)
Fitbit	− 12.3 a	24.5	− 42.4	39.8	− 11.6	− 11.1	3.1	1.5
Neuroon	− 156.5	172.6	− 165.2	20.4	− 19.6	52.6	− 13.6	− 36.3
Neuroon (signal quality = 2)	− 6.9	4.4	− 64.7	38.0	11.6	4.5	− 15.5	1.7
Neuroon (signal quality = 0)	− 265.1	281.6	− 223.6	5.8	− 62.1	94.7	− 12.9	− 62.7

^aBold indicates bias within acceptable range