Table 1.

Sleep Scale

How often do you have trouble falling asleep? How often do you have trouble with waking up during the night? How often do you have trouble with waking up too early and not being able to fall asleep again? How often do you feel really rested when you wake up in the morning?*

Responses: Most of time, sometimes, rarely, don’t know/blank

^*Item #4 was reverse coded so that higher numbers indicated better sleep.