{"id":607,"date":"2014-01-09T13:20:00","date_gmt":"2014-01-09T12:20:00","guid":{"rendered":"https:\/\/kids.esa.int\/sleeping_on_the_iss\/"},"modified":"2026-10-08T00:30:12","modified_gmt":"2026-10-07T22:30:12","slug":"sleeping_on_the_iss","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/sleeping_on_the_iss\/","title":{"rendered":"Dormir \u00e0 bord de l'ISS"},"content":{"rendered":"<div class=\"lede\">\n<p>Avez-vous d\u00e9j\u00e0 souffert du d\u00e9calage horaire apr\u00e8s avoir survol\u00e9 plusieurs fuseaux horaires ? Les voyages au long cours peuvent entra\u00eener des troubles du sommeil et des probl\u00e8mes de somnolence pendant la journ\u00e9e. Mais qu\u2019arrive-t-il sur la Station spatiale internationale (ISS), o\u00f9 les \u00e9quipages peuvent observer 16 couchers et levers du Soleil par tranche de 24 heures ?<\/p>\n<\/div>\n<p>Tout comme nous, les astronautes peuvent souffrir de troubles du sommeil dans l'espace. Le stress, une charge de travail importante, les bruits de fond, la lumi\u00e8re et la qualit\u00e9 de l'air peuvent tous perturber leur horloge biologique. R\u00e9duire au minimum les troubles du sommeil chez les astronautes est l'un des objectifs de l'\u00e9quipe m\u00e9dicale du Centre europ\u00e9en des astronautes.<\/p>\n<p>M\u00eame si le jour et la nuit ont moins d'importance en orbite, le calendrier de l\u2019\u00e9quipage de l\u2019ISS est bas\u00e9 sur une journ\u00e9e de 24 heures selon l\u2019heure de Greenwich. Du lundi au vendredi, les astronautes suivent un programme quotidien structur\u00e9. Ils travaillent environ dix heures chaque jour, puis dorment pendant huit heures. Les repas ont lieu \u00e0 heure fixe, tout comme les phases de relaxation et de temps libre, les d\u00e9briefings et les sessions de communication avec famille et amis.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3032\" data-credit=\"NASA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/11\/Nespoli_inside_sleeping_bag_in_Harmony2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2007\/11\/nespoli_inside_sleeping_bag_in_harmony2\/17894684-2-eng-GB\/Nespoli_inside_sleeping_bag_in_Harmony.jpg\" alt=\"Nespoli inside sleeping bag in Harmony\"><figcaption>Nespoli dans son sac de couchage \u00e0 Harmony<\/figcaption><\/figure>\n<p>Les activit\u00e9s du samedi sont consacr\u00e9es au travail, \u00e0 des t\u00e2ches de maintenance et de nettoyage ainsi qu\u2019aux loisirs. Le dimanche est un jour de repos. Cependant, de nombreux astronautes choisissent volontairement d\u2019effectuer des missions scientifiques ou de maintenance. Malgr\u00e9 tout, le planning quotidien peut parfois \u00eatre perturb\u00e9 par des \u00e9v\u00e9nements impr\u00e9vus ou l\u2019arriv\u00e9e de v\u00e9hicules spatiaux.<\/p>\n<p>Le recours aux somnif\u00e8res n\u2019est g\u00e9n\u00e9ralement pas n\u00e9cessaire, mais de la m\u00e9latonine est parfois prescrite pour aider les astronautes victimes de syndromes de d\u00e9calage horaire. Ce type de traitement peut n\u00e9anmoins entra\u00eener des effets secondaires comme de la somnolence ou des difficult\u00e9s \u00e0 se r\u00e9veiller. Le Centre europ\u00e9en des astronautes effectue r\u00e9guli\u00e8rement des tests car les effets secondaires peuvent varier d\u2019une personne \u00e0 l\u2019autre.<\/p>\n<p>La communaut\u00e9 m\u00e9dicale spatiale m\u00e8ne \u00e9galement des exp\u00e9riences avec des lumi\u00e8res de diff\u00e9rentes couleurs. Un \u00e9clairage bleu \u00e0 bord de la Station spatiale \u2013 qui ressemble \u00e0 la lumi\u00e8re vive du soleil \u2013 pourrait inciter l'organisme \u00e0 \u00eatre plus alerte, tandis qu'un \u00e9clairage rouge pourrait favoriser le sommeil.<\/p>","protected":false},"excerpt":{"rendered":"<p>Have you ever suffered from jetlag after flying across many different time zones? Such long distance journeys often lead to problems in sleeping at night and a feeling of drowsiness [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2014\/01\/space_station_at_night\/17870856-2-eng-GB\/Space_Station_at_night.jpg","esa_banner_description":"Space Station at night","esa_banner_credit":"NASA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2014\/01\/Space_Station_at_night","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,13,63],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-607","post","type-post","status-publish","format-standard","hentry","category-learn","category-life-in-space","category-living-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/607","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=607"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/607\/revisions"}],"predecessor-version":[{"id":4578,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/607\/revisions\/4578"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=607"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=607"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=607"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=607"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=607"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=607"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=607"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}