I'm naturally a late sleeper, I travelled from UK to California then Floria for a couple of weeks and found I pretty instantly became a morning person in the ne

I'm naturally a late sleeper, I travelled from UK to California then Floria for a couple of weeks and found I pretty instantly became a morning person in the new time zone. Though I'm not sure if that is down to exhaustion from a 23 hour journey forcing me to sleep earlier and longer for a few nights and thus re-jigging my sleep cycle.