Table 3.

Two factor solution with Oblimin rotation.

	Extracted factors
Original Item Pool	1	2
That I am still not asleep	0.99
How long I have been awake	0.84
That I won’t be able to cope with so little sleep	0.75
How getting too little sleep affects me	0.70
How tired‎/sleepy I feel	0.54
Checking the time	0.58
Everyday worries (e.g. about work or home life)	0.68
Tomorrow (plans, things I have to do)	0.72
How I can’t stop my mind from racing	0.73
How restless I feel	0.54
Worries about the more distant future	0.60
Things that happened during the day	0.58
Noises I hear	—	—
Unwanted memories of the event		0.61
Dwelling on the event (e.g. asking yourself ‘why me,’ ‘what if’ questions)		0.63
Dwelling on how my life has been changed by the event		0.51
Being vulnerable if I sleep		0.86
How afraid I feel		0.77
Something bad happening to my body if I sleep (e.g. heart attack, stop breathing, will not wake up, will die)		0.65
Fear of nightmares		0.44
How lonely I feel		0.61
How angry I feel		0.49

Factor 1 = GCTI-adapted; Factor 2 = Trauma Thoughts before Sleep Inventory (TTSI); TTSI items are indicated in bold.