Hypnagogic Hallucinations

Has anyone else had this before: fall asleep and dream right away. Google said it's called "hypnagogic hallucinations". I had 2 last night and it was such an odd experience.

I'm calling them mini dreams because they didn't last long and I don't remember much at all from them. Just fell asleep briefly and woke up right away...couldn't have lasted more than a minute.

First one I had, I dreamt the number "17385" and that's all I remember.

Second one I had, I dreamt the date February 21. No year. My coworker was briefly in the dream and said this date.

Could these mean anything or just a random number and date my brain came up with?