The PROMESS - SLEEP project aims to offer solutions to students to improve their sleep during their medical studies. It responds to a demand expressed by students: our field study showed that 40% of 4th year students declared being "very interested and/or interested" in following an intervention that aimed at improving sleep. An early knowledge of sleep optimization tools would allow students to quickly acquire the tools necessary to cope with the difficult conditions encountered during their training and lives of future doctors.The objective of this study is to determine the influence of an intervention program based on sleep improvement and fatigue reduction among medical students. conditions: Health Behavior conditions: Health-Related Behavior conditions: Sleep conditions: Sleep Disorder conditions: Fatigue studyType: INTERVENTIONAL phases: NA allocation: NA interventionModel: SINGLE_GROUP interventionModelDescription: All volunteers will receive an intervention program based on sleep improvement and fatigue reduction. primaryPurpose: HEALTH_SERVICES_RESEARCH masking: NONE count: 45 type: ESTIMATED name: Sleep measure: Perceived level of sleep troubles. Evolution of the score obtained at the Pittsburgh Sleep Questionnaire Inventory (PSQI). measure: Perceived level of sleep troubles. Score obtained at the Pittsburgh Sleep Questionnaire Inventory (PSQI). measure: Epworth Sleepiness scale. Score obtained at the Epworth Sleepiness scale. measure: Multidimensional Fatigue. Score obtained at the Multidimensional Fatigue Inventory (MFI). measure: Reduced composite scale of morningness. Score obtained at the reduced composite scale of morningness (RCSMS). measure: Actimetry records. Time in Bed during the pre-intervention. measure: Actimetry records. Total sleep duration during the pre-intervention. measure: Actimetry records. Sleep efficiency during the pre-intervention. measure: Actimetry records. Sleep Onset Latency during the pre-intervention. measure: Actimetry records. Wake after Sleep Onset during the pre-intervention. measure: Actimetry records. Number of Awakenings during the pre-intervention. measure: Actimetry records. Bedtime during the pre-intervention. measure: Actimetry records. Mid-sleep point during the pre-intervention. measure: Actimetry records. Sleep Onset time during the pre-intervention. measure: Actimetry records. Sleep Inertia during the pre-intervention. measure: Actimetry records. Wake-up time during the pre-intervention. measure: Actimetry records. Sleep regularity index during the pre-intervention. measure: Multidimensional Fatigue. Evolution of the score obtained at the Multidimensional Fatigue Inventory (MFI) during the intervention. measure: Actimetry records. Evolution in Time in Bed during the intervention. measure: Actimetry records. Evolution in Total sleep duration during the intervention. measure: Actimetry records. Evolution in Sleep efficiency during the intervention. measure: Actimetry records. Evolution in Sleep Onset Latency during the intervention. measure: Actimetry records. Evolution in Wake after Sleep Onset during the intervention. measure: Actimetry records. Evolution in Number of Awakenings during the intervention. measure: Actimetry records. Evolution in Mid-sleep point during the intervention. measure: Actimetry records. Evolution in Bed time during the intervention. measure: Actimetry records. Evolution in Sleep Onset Time during the intervention. measure: Actimetry records. Evolution in Sleep Inertia during the intervention. measure: Actimetry records. Evolution in Wake-up Time during the intervention. measure: Actimetry records. Evolution in Sleep regularity index during the intervention. measure: VAS - sleep quantity: Evolution of the score obtained at the 100-mm Visual Analogue Scale (VAS) assessing the quantity of sleep. measure: VAS - sleep quality. Evolution of the score obtained at the 100-mm Visual Analogue Scale (VAS) characterizing the sleep quality. measure: VAS - sleep fatigue. Evolution of the score obtained at the 100-mm Visual Analogue Scale (VAS) assessing the perceived level of fatigue. measure: Advices given by the expert. Score obtained on a Likert scale ranging from 1 to 5 characterizing the nature of the advices given by the expert. measure: Likert - expert estimation of student's achievements. Score obtained on a Likert scale ranging from 1 to 3 accessing if the expert estimates that the student has achieve the goals previously set. measure: Likert - expert satisfaction. Scores obtained on a Likert scale ranging from 1 to 5 accessing the expert's satisfaction of his/her intervention. measure: Likert - expert level of comfort. Score assessing the expert comfort levels in participant relationships on a likert scale ranging from 1 to 5. measure: Likert - expert estimation of the overall student's achievements. Score obtained on a Likert scale ranging from 1 to 5 accessing the expert's level of satisfaction on the student's progress. measure: Composite score - Student's satisfaction. Score ranging from 0 to 100 accessing the student's level of satisfaction of the all intervention. sex: ALL minimumAge: 18 Years maximumAge: 80 Years stdAges: ADULT stdAges: OLDER_ADULT facility: RESHAPE status: RECRUITING city: Lyon zip: 69008 country: France name: Sophie Schlatter, Dr. role: CONTACT phone: 07 68 21 05 51 phoneExt: 33 email: sophie.schlatter@univ-lyon1.fr name: Angèle Métais, Dr. role: CONTACT phone: 06 77 39 89 66 phoneExt: 33 email: angele.metais@univ-lyon1.fr lat: 45.74848 lon: 4.84669 hasResults: False