lull to sleep
lull (one) to sleep
To cause one to become so relaxed that one drifts gently and peacefully to sleep. The professor's calm, melodic voice keeps lulling me to sleep. The only thing that can lull my baby to sleep is being in the car while the motor is running.
lull (someone or an animal) to sleep
to quiet and comfort someone or an animal to sleep. The sound of the waves lulled me to sleep. The dog's heartbeat lulled her puppies to sleep.