Table 1.

An overview of the content of each core of dCBT-I and the content of sessions in the FtF CBT-I

Core/session	dCBT-I	FtF CBT-I
1	Overview: Reviews the nature of insomnia and how the program works; participants identify their sleep problems and set up personal treatment goals.	Motivation and personal treatment goals. Psychoeducation about sleep architecture and the two-process theory of sleep-wake regulation. Education about sleep hygiene if patient is engaging in activities that could obviously interfere with the effect of sleep restriction (e.g. excessive caffeine use). Setting up sleep restriction (lower limit of 5 h). Setting up a plan for tapering of sleep medication if a treatment goal for the patient is to stop or reduce medication use.
2	Behavior and sleep: Focuses on how behavioral changes can improve sleep, with special emphasis on sleep restriction (lower limit of 5 h).	Review of adherence to sleep restriction and problem solving if needed. Socratic dialogue about changes in beliefs and behaviors about sleep, particular changes that have occurred as a function of sleep restriction (e.g. the need for safety behaviors in order to sleep). Motivational work to keep the patient adhering to sleep restriction.
3	Behavior and sleep 2: Focuses on behavioral changes that can improve sleep, with special emphasis on stimulus control	As week 2. Adding stimulus control if necessary.
4	Sleep and thoughts: Focuses on addressing and changing beliefs and thoughts that might impair sleep.	As weeks 2 and 3.
5	Sleep hygiene: Teaches about lifestyle and environmental factors that might interfere with sleep (e.g. caffeine and nicotine intake, electronic media use in bed).	As weeks 2 and 3.
6	Relapse prevention: Focuses on integrating the behavioral, educational, and cognitive components from the previous cores to develop strategies to prevent future episodes of poor sleep to develop into full-blown chronic insomnia.	Final session. Evaluation of current status relative to treatment goals in session 1. Relapse prevention: Check that the patient has understood the rationale behind sleep restriction and can implement use of sleep diaries and sleep restriction should sleep problems occur later. Implement stimulus control if the patient wants to stop sleep restriction.