The clue "Sleep phenomenon" last appeared in the Universal crossword on October 28, 2016. The correct answer for this puzzle is "REM", a 3-letter word.
Solution REM is our most searched for solution by our visitors. Solution REM is 3 letters long. We have 0 further solutions of the same word length.
There are 3 solutions. The longest is APNEA with 5 letters, and the shortest is REM with 3 letters.
No, "SLEEP PHENOMENON" hasn´t seen a spike right now. Solvers are most interested in: Radiate, Really annoy, Wild party, Mixture and Change.
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Solutions are between 3 and 5 letters long.