Simple past tense and past participle of somnambulate.(verb)
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Use "somnambulated" in a sentence
"Five minutes previously, François somnambulated his way into our bedroom with the shark in question (stuffed, of course,) and sleepily piped up "Cats don't eat sharks.""
"I had an uncle that somnambulated, and he used to hide the sheets in an old carriage in the barn."
"oh go on wayne, you are not. you've somnambulated through life from one talking point to the next with nary a stray spike in the e.e.g. to indicate consciousness."