Table 2. Scores (mean and standard deviation) in demographic variables for blue-enriched and dim light conditions.

	Blue-enriched Light		Dim Light
	M	SD	M	SD
MEQ scores	50.13	5.78	50.13	5.19
Sleep duration (hours)	7.63	0.75	7.79	0.67
Time awake before the experiment (hours)	13.21	0.82	12.94	0.72
Room temperature variation (in °C)	1.55	0.40	1.61	0.29