So i had a nap in an attempt to lucid dream... failed but i woke up went back to bed and in my dream my friend was talking to me while i was trying to sleep my eyes were closed and im like "dude get out of here im trying to sleep" then I realised my friend wasnt there and that it was a dream.

What was that? a false awakening and how can i recognize that im dreaming when that occurs... Thanks in advance