Clinical Research Directory

Inclusion criteria: 1. 45-65 years of age 2. Diagnosis of OSAS by respiratory polygraphy or polysomnography with an apnea-hypopnea index (AHI) ≥20 when scored by PSG or ≥15 when scored by PG30 with a prescription for CPAP therapy 3. Diagnosis of chronic insomnia according to the International Classification of Sleep Disorders (ICSD 3-TR).31 4. Ability to communicate in French 5. Ability to provide informed consent 6. Accept to receive information about incidental findings 7. Ownership of a smartphone running at least Android 9 (API version 28+) or iOS 12.2+. Exclusion criteria: 1. Current treatment for OSAS 2. Current or past treatment for chronic insomnia (CBT-I) 3. Severe restless legs syndrome 4. REM sleep behaviour disorder 5. Neurological diseases (stroke, Parkinson's disease, etc.) 6. Severe hypertension (≥180 mmHg systolic or requiring ≥3 antihypertensive medications) 7. Respiratory failure (oxygen saturation during wakefulness \<90%) 8. Severe heart failure (NYHA class III-IV) 9. High-risk alcohol consumption (≥14 units/week) 10. Known pregnancy 11. Epilepsy or history of epileptic seizures (ICD-11: 8A6; ICD-10: G40) 12. Known bipolar disorder of any type (ICD-11: 6A60, 6A61, 6A6Y, 6A6Z; ICD-10: F31) 13. Known Acute and transient psychotic disorder (ICD-11: 6A23; ICD-10: F23) 14. Known Active suicidal ideation 15. Known or suspected severe parasomnias incompatible with programme use (e.g., sleepwalking: 16. Known Severe cardiovascular disease that may contraindicate unsupervised CBT-I strategies (e.g., unstable arrhythmias, angina pectoris) 17. Any medical or psychiatric condition that, in the investigator's judgment, would contraindicate the use of the CE-marked HelloBetter Insomnie digital device or participation in CBT-I