The present invention provides a novel composition for promoting sleep. The present invention provides a composition for promoting sleep, which uses bacteria belonging to Bifidobacterium breve as an active ingredient. The composition for promoting sleep of the present technology can prolong non-rapid eye movement sleep and rapid eye movement sleep, reduce the amount of spontaneous activity during sleep, reduce the awake time during sleep, or extend the sleep time. The composition for promoting sleep of the present technology can also reduce difficulty in waking up during the day. The composition for promoting sleep of the present technology can be used for a pharmaceutical composition, a beverage, or a food composition.本發明係提供一種新的睡眠促進用組成物。本發明係提供一種睡眠促進用組成物，係以屬於短雙歧桿菌之細菌作為有效成分。本技術之促進睡眠用組成物係可延長非快速動眼睡眠以及快速動眼睡眠、減少睡眠中的自發活動量、減少睡眠中的清醒時間、或是延長睡眠時間。本技術之促進睡眠用組成物亦可減少白天的清醒困難。本技術之促進睡眠用組成物係可用於醫藥品組成物或飲品、食品組成物。
