From: Psychometric evaluation of the sleep hygiene index: a sample of patients with chronic pain
Factor loadings | |||
---|---|---|---|
Item content | 1 | 2 | h 2 |
10. I sleep on an uncomfortable bed (for example: poor mattress or pillow, too much or not enough blankets). | .77 | .06 | .60 |
11. I sleep in an uncomfortable bedroom (for example: too bright, too stuffy, too hot, too cold, or too noisy). | .74 | -.02 | .55 |
12. I do important work before bedtime (for example: pay bills, schedule, or study). | .65 | -.12 | .43 |
7. I do something that may wake me up before bedtime (for example: play video games, use the internet, or clean). | .51 | .23 | .31 |
6. I use alcohol, tobacco, or caffeine within 4 hours of going to bed or after going to bed. | .50 | .04 | .25 |
13. I think, plan, or worry when I am in bed. | .49 | .20 | .28 |
9. I use my bed for things other than sleeping or sex (for example, watch television, read, eat, or study). | .43 | .26 | .25 |
4. I exercise to the point of sweating within 1 hour of going to bed. | .14 | .06 | .02 |
3. I get out of bed at different times from day to day. | .13 | .83 | .70 |
2. I go to bed at different times from day to day. | .13 | .82 | .69 |
5. I stay in bed longer than I should two or three times a week. | .06 | .74 | .55 |
1. I take daytime naps lasting two or more hours. | .00 | .50 | .25 |
8. I go to bed feeling stressed, angry, upset, or nervous. | .34 | .46 | .33 |