The problem to be solved by the present invention is to provide safe formulations, foods and beverages that increase non-REM sleep.SOLUTION: To provide a composition for activating DP1, a composition for improving sleeping, and a composition for promoting non-REM sleeping, containing one or more components selected from the group consisting of
Eclipta thermalis, Thymus quinquecostatus, and
Stellaria media, and to provide preparations, foods, and beverages containing the same.SELECTED DRAWING: Figure 1