Parasomnias

noun a sleep disorder characterized by talking during sleep

• Somniloquy is a sleep disorder characterized by talking during sleep without being aware of it.
• My roommate's somniloquy keeps me up at night, he talks in his sleep all the time.
• I heard my sister's somniloquy last night, she was chatting away in her dreams.
• The somniloquy of the wind through the trees lulled me to sleep.

noun a combination of two nouns, 'sleep' and 'texting', to describe the act of sending text messages while asleep

• Sleep-texting is a phenomenon where individuals send text messages while asleep.
• I keep sleep-texting my friends and waking up to embarrassing messages.
• I can't believe I sleep-texted my ex last night, it was so awkward.
• Sometimes I feel like I'm sleep-texting through life, not fully present in the moment.

noun a person who walks or performs other activities while asleep; a sleepwalker

• The noctambulist was observed walking in his sleep during the night.
• I heard that John is a noctambulist and walks around at night while sleeping.
• I can't believe she's a noctambulist, that's so weird!
• The artist was a noctambulist, wandering through the realm of creativity while everyone else slept.