It is possible to offer the composition for sleep improvement where you can obtain the sleep improvement effect which is superior (A) by combining with the component which possesses the action which raises parasympathetic nerve function and (B) the component which possesses the action which urges the increase of the peripheral blood style.(A)副交感神経機能を高める作用を有する成分と、(B)末梢血流の増加を促す作用を有する成分とを組み合わせることにより、優れた睡眠改善効果が得られる睡眠改善用組成物を提供することができる。