Table 2.

Summary of Multiple Regression Analysis Predicting Overall Sleep Quality and Quantity from the Positive Psychological Traits, Studies 1 and 2

	Study 1 Global Sleep Scores	Study 2 Global Sleep Scores
Mindfulness (β)	− 0.19**	− 0.18**
Self-compassion (β)	− 0.01	− 0.08
Gratitude (β)	− 0.07	− 0.10
Optimism (β)	− 0.32***	− 0.16*
Model F	21.04***	15.40***
Model R2	0.25***	0.16***

*** p < .001; ** p < .01; * p < .05

Note. Total df Study 1 = 257, Study 2 = 332