Provided is an insomnia treatment assistance device including: a bedtime setting unit (14) that sets a bedtime of a user on the basis of sleep efficiency of the user and notifies it to the user; an execution time setting unit (15) that sets a time earlier than the bedtime by a first predetermined time as a sleepiness test execution time; and a reminder message presentation unit (16) that presents a reminder message for prompting execution of a sleepiness test to the user at the sleepiness test execution time. The sleepiness test can be performed at an appropriate time depending on the sleep efficiency that suggests a degree of amelioration of insomnia even in a case where the sleepiness test is performed once a day. It is possible to appropriately measure user's sleepiness depending on the degree of amelioration of insomnia while minimizing a user's burden for the sleepiness test.
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