Table 2. Frequency of Sleep Complaints at Baseline (n=908).

Sleep question	Never	Rarely	Sometimes	Often	Very often
Trouble falling asleep	241 (27%)	380 (42%)	186 (20%)	52 (6%)	49 (5%)
Waking up at night	140 (15%)	203 (22%)	222 (24%)	160 (18%)	183 (20%)
Daytime napping	192 (21%)	201 (22%)	190 (21%)	159 (18%)	166 (18%)
(Not) rested upon awakening	311 (34%)	356 (39%)	138 (15%)	75 (8%)	28 (3%)

Values rounded to the nearest %.

Question 1: How often do you have trouble falling asleep?

Question 2: How often are you troubled by waking up during the night?

Question 3: How often do you get so sleepy during the day or evening that you have to take a nap?

Question 4: How often do you feel really rested when you wake up in the morning?