Table 2

Session content for sleep hygiene education

Session number	Content
1. Sleep education	Content is the same as CBT-I.
2. Sleep hygiene (SH)	Content is the same as CBT-I.
3. Insomnia and pain	Participants are provided education on chronic/acute insomnia (Spielman’s 3 P’s model)53 and the Gate Control Theory54 of pain.
4. Environment	Participants are provided with education on SH rules related to environmental factors (eg, noise, light).
5. Lifestyle	Participants are provided with education on lifestyle factors that influence sleep (eg, use of stimulants and other substances).
6. Diet	Participants are provided with education about diet and nutrition and their influence on sleep.
7. Exercise	Participants are provided with education about exercise and its influence on sleep.
8. Review and maintenance	In the final session, SH training reviewed and continued practice is encouraged. Problems are trouble-shooted. All education provided in previous sessions will be reviewed. Finally, continued engagement in education will be discussed.
Booster sessions	As in CBT-I, all training and education covered in SH training will be reviewed in a brief (~20 min) telephone call. Continued SH practice and education engagement are encouraged. Problems are trouble-shooted.