This exploratory study will identify and characterise disorders frequently reported by patients as contributing to or altering their quality of life. This will enable a decision tree to be drawn up for diagnosis, referral and treatment of the sleep disorders collected, tailored to patients in this population.

This decision tree should help to improve the management of patients with a cancer diagnosis presenting with sleep disorders.

Inclusion Criteria:

• Patient aged 18 and over.
• Being monitored and treated for non-small cell lung cancer.
• With or without ongoing cancer-specific treatment. With no neurocognitive impairment (MoCA test score ≥26/30).
• With a clinically assessed life expectancy of more than 3 months (Royal Marsden Hospital 0-1) and general health (ECOG <2).
• Able to understand the study documents written in French
• Able to complete the study questionnaires written in French.
• Contactable by telephone throughout the study
• Affiliated to a social security scheme or entitled beneficiary
• Not opposed to taking part in the study

Exclusion Criteria:

• Patient refusing to take part in the study
• With a mental illness of the psychosis type monitored and treated prior to the study
• Patient under guardianship or curatorship
• Patient under court protection

Patients with a diagnosis of non-small cell lung cancer followed and treated by the Oncopneumology Department of the Nouvel Hôpital Civil in Strasbourg