Apparently the other night, I was laughing in my sleep and saying 'He's was hit in the face with a number eleven' and laughing more.
The OH asked me yesterday what this was about. I've no recollection of saying it or what the dream might have been about, but it made me laugh again much to his annoyance.
The book I've just finished reading had a chapter on twins with autism who liked prime numbers so I wonder if it was connected to that. Although the prime numbers they like were ones with about 10 digits - the number 11 hardly reflects the same sort of genius for numbers.