- somnolenceA state of drowsiness or sleepiness.
- parasomniaAny of several sleep disorders.
- somn-Relating to sleep.
- somnambulantWalking as if, or while, asleep; sleepwalking.
- somnambulationThe phenomenon of sleepwalking.
- somnambulismsleepwalking
- somnambulizeTo sleepwalk; to somnambulate.
- somnifacientInducing or causing sleep.
- somniloquaciousTalkative in one’s sleep.
- somniloquousTalking while asleep.
- somnipathyAny sleep disorder.
- somnivolentHaving a desire to sleep.