His somniloquy seemed to be related to his vivid dreams.
nighttime chatter
Frequency:
65
%
The doctor recommended recording her nighttime chatter to analyze her somniloquy patterns.
sleep monologue
Frequency:
60
%
The sleep monologue she engaged in during somniloquy was often nonsensical.
Idiomatic Expressions for somniloquy
Phrase: ramble on
Meaning: to talk continuously and at length, often in a way that is not coherent or focused
Usage: He tends to ramble on when he's nervous, and it can be hard to follow his train of thought.