Lewis & Short

con-dormisco, dormīvi, 3, v. inch. [dormio], to go entirely to sleep, to fall asleep; only in Plaut. Curc. 2, 3, 81; id. Rud. 2, 7, 13; id. Mil. 3, 2, 13; in perf., id. Most. 2, 2, 55.