Objective: The main objective of this study is to assess the frequency and nature of sleep disorders in patients (both adults and children) with specific learning disorders, with or without ADHD. Secondary

Objectives: * Characterize the SLD patient population in France by considering age and gender: o Determine the prevalence of co-morbidities, such as: ADHD Anxiety and depressive disorders Other reported medical conditions * Assess the types of care provided (medication or other) for both children and adults * Determine the frequency of SLD in a familial context * Identify whether the following factors are associated with a higher frequency of sleep disorders: * Single SLD vs. multiple SLD * The presence of ADHD, anxiety-depressive disorders, or other medical conditions alongside SLD * Demographic characteristics (age, gender, etc.) * Family history of SLD among relatives (parents and siblings) * Medication use