Evaluation of Sleep Changes in Inflammatory Bowel Diseases (IBD) Patients.

Inclusion Criteria: * Patient over 18 and under 65 years of age. * Patient with Inflammatory Bowel Disease diagnosed for at least 3 months. * Patient in remission, for at least 3 months: 1. clinical remission: Harvey-Bradshaw score (HBI) \< 5 for CD and a Mayo score \< 3 for UC 2. and biological remission: absence of objective inflammation defined by CRP \< 5 mg/L and/or fecal calprotectin \< 250 µg/g. * Patient must sign informed consent form to participate to the study. * Patient affiliated to or benefiting from a social security plan. Exclusion Criteria: * Patient with complications (obstructive symptoms, fistulas or intra-abdominal abscesses in the previous three months). * Patient with extensive bowel resection (\> 40 cm of small bowel). * Patient with an ileostomy or colostomy. * Patient diagnosed with sleep disorders. * Patient without legal capacity to consent. * Pregnant, parturient or nursing women. * Persons deprived of liberty by judicial or administrative decision. * Persons under psychiatric care. * Persons admitted to a health or social institution for purposes other than research. * Persons of full age who are subject to a legal protection measure (guardianship, curators).