The present invention relates to a controlled-release pharmaceutical composition which, when administered in the evening, promotes rapid sleep onset and makes it easy to wake up in the morning in a refreshing way. The composition comprises: a first portion having sleep-inducing activity, which is able to be degraded and absorbed in vivo within 5 minutes to 1 hour after administration and a second portion having cognition-enhancing activity, which is able to be released in vivo after 4 to 8 hours from the start of absorption of the first portion. The composition, when administered in the evening, promotes rapid sleep onset and makes it easy to wake up in the morning in a refreshing way.
