Test-retest Reliability of the Maintenance of Wakefulness Test in Participants With Hypersomnolence

Inclusion Criteria : * Being affiliated or beneficiaries of a social security system. * Having been informed of the study and having given their free and informed consent, written and signed consent to participate to the study Plus one of the following inclusion criteria: * Participant with a suspicion of OSAS without any previous diagnosis or treatment and with Epworth Sleepiness Scale ≥ 11. * Participant with effective and stable treatment for OSAS (defined by apnea-hypopnea index ≥ 15 per hour) since at least 15 days and intended to be explored by a MWT. This group will be stratified on the age (half of patients of this group \< 40 years old and the other half of patients of his group ≥ 40 years old). * Participant with effective and stable treatment for narcolepsy type 1 as defined by the ICSD-3 (cataplexy or lack of orexine) since at least 15 days and intended to be explored by a MWT. * Healthy volunteers with Epworth Sleepiness Scale \< 11. Exclusion Criteria: * Comorbid sleep disorders associated with excessive daytime sleepiness (e.g., OSAS and narcolepsy) * Severe conditions endangering life in the short term * Participant with cardiovascular, neurological, psychiatric, respiratory, infectious, endocrine, or systematic pathology, which is not stabilized and may require hospitalization or a modification of therapy during the duration of the study * Introduction or change in dosage of a psychotropic medication in the previous year which may modify the level of arousal in the previous year and modify the MWT results * Healthy volunteer with suspected SAOS (total score at STOP-BANG≥ 5) or suspected insomnia disorder (total score at ISI≥ 22) * Shift or night workers * Pregnant or breastfeeding woman * Participants under curatorship or guardianship