Sleep, Stress and Migraine - an Observational and Training Study

Inclusion Criteria: * Adults aged between 18 and 65 years * Diagnosis of episodic migraine according to The International Classification of Headache Disorders (ICHD-3) criteria confirmed by our headache specialists * 4 to 14 headache days per month (mean value based on the 3 months prior to study enrollment) * Ability to give informed consent and to adhere to the study protocol * Sufficient German language comprehension to follow the study procedures and answer all questions related to the study outcomes * Stable migraine medication regimen for the past 3 months and throughout the study period Exclusion Criteria: * Diagnosis of sleep disorders that could interfere with the sleep intervention, such as obstructive sleep apnea with an apnea-hypopnea index (AHI) \> 15, Restless Legs Syndrome, frequent (i.e. weekly) Non-rapid eye movement (NREM) sleep parasomnia, REM Behavior Disorder (RBD) * Current diagnosis of a psychiatric disorder that is inadequately treated or therapy-resistant and may interfere with study participation or adherence to study procedures (this includes, but is not limited to: schizophrenia, schizoaffective disorder, bipolar disorder (type I), post-traumatic stress disorder with active symptoms, or major depressive disorder with ongoing functional impairment despite treatment). Diagnosis must be confirmed by clinical history or treating physician. * Regular use of benzodiazepines and other central nervous system (CNS)-depressant substances (self-reported) * Concomitant steroid medication (self-reported) * Known or suspected alcohol, drug or medication abuse (i.e. \> 0.5 l wine or 1 l beer per day) * Inability to follow the procedures of the study (e.g., due to language problems, cognitive deficits, instable home situation) * Concurrent participation in another study involving drug and behavioral interventions within 3 months prior to and during the present study, as well as participation in an ongoing study with data collection through SEMA3 * Planned medical intervention of substantial relevance requiring hospitalization for more than 24 hours (e.g. surgery) during intervention (routine assessments, e.g. check-ups will be allowed) * Shift work with working during the night * Travelling more than 2 time zones in the last month before the observation or intervention periods or during the study * Persons who are pregnant or breastfeeding