It occurred to me today that perhaps the more tired you are the easier it is to stay lucid for a lengthier amount of time. I say this because often people mention they get so excited when they realize they're lucid dreaming that they wake up.

When you're tired, however, waking up is more of a challenge.

I recently had a lucid dream when I was rather exhausted, and it was the longest one I've ever had. So I'm just wondering:

What do you think? Do you think how sleepy you are has any overall affect on how long you remain lucid?