Experiencing images during sleep (8)

I believe the answer is:

dreaming

(Other definitions for dreaming that I've seen before include "Having fantasies about Niger Dam" , "Having fantasies in mid-range" , "Experiencing while sleeping" , "In reverie" , "Fantasising" .)

I've seen this clue in The Irish Times and the Irish Times (Simplex).

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.