Digital Psychological Self-care for Sleep Problems

Inclusion Criteria: * Insomnia complaints of at least medium severity (15 or above on the ISI) * Insomnia disorder according to DSM-5 * Adequate language skills (Swedish) * No foreseeable practical hinders to participate * Can wear actigraph 24/7 * Daily access to the internet, via computer, smart phone or tablet Exclusion Criteria: * Sleep disorders requiring other treatment (e.g. sleep apnea) * Somatic or psychiatric disorders that require other treatment (e.g. suicide risk, severe depression) or that decrease level of functioning enough to prevent working independently. * Use of alcohol or drugs in a way that will affect sleep negatively, use of medications with a negative impact on sleep. (Stable use of anti depressants and stable use or tapering of hypnotics are allowed) * Night work or shift work involving night work * Ongoing or previous psychological treatment including sleep restricion and stimulus control