Table 5.

Percentage of the Insomnia Group and the Normal Sleeper Group Mentioning Each Category as the Basis for Their Sleep Quality Judgment from the Seven Consecutive Nights of Sleep Diaries

Category	Insomnia (%)	Normal Sleeper (%)	χ2 (1)
Evening/Night time variables
Awakenings in the night	88	89	0.02
Total sleep time	76	71	0.14
Sleep Onset Latency	60	61	0.00
Sleeping “well” or “badly”	52	79	4.16*
Anxiety and worry and mood in the night	48	32	1.39
Restless sleep	36	43	0.26
Dreams	28	39	0.75
Body Sensations, e.g. pain, hunger, thirst, comfort	28	29	0.00
Need for sleep on the basis of quality of sleep on recent nights	28	18	0.78
Tiredness	20	14	0.31
Time of getting into bed	16	25	0.65
Use of substances (e.g., alcohol, drugs, caffeine)	4	7	0.24
Expectation last night of how sleep would be	4	0	1.14
Activity the previous day	0	11	2.84
Setting/context (e.g. whose bed, bed partner)	0	7	1.86
Monitoring (e.g. clock-watching)	0	7	1.86
Physiological arousal in the night	0	0	N/A
Daytime variables
Tiredness on waking and throughout the day	84	71	1.19
Feeling rested, restored, refreshed, replenished	68	68	0.00
Time of waking in the morning	64	36	4.23*
Body sensations on waking and during the day	44	14	5.75*
Motivation to get up or sleep in the morning	32	50	1.76
Alertness, clear-headedness, ability to concentrate	32	25	0.32
Mood/emotion/anxiety on waking	28	25	0.06
Feelings of energy/lethargy	12	14	0.06
Inability to go back to sleep on final awakening	12	7	0.37
Alarm/natural awakening	8	29	3.65
Expectation of sleep's impact on day	8	0	2.32
Non-specific feeling ‘good’ or ‘bad’	4	25	4.55*
Performance level and efficiency	4	0	1.14
Coordination and balance	4	0	1.14
Memory of sleep	0	7	1.86
Level of light when wake up	0	4	0.91
Physiological arousal in the day	0	4	0.91
Level of sociability	0	0	N/A
Coping strategies (e.g., coffee, naps)	0	0	N/A
Ease or difficulty of staying awake	0	0	N/A
Appearance on waking	0	0	N/A

^*P < 0.01