Crossword Genius

Sleep concern (5)

Ross

I believe the answer is:

apnea

'sleep concern' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for apnea that I've seen before include "stopping breathing in US" , "Cessation of breathing during sleep (US spelling)" , "that'll make you catch your breath?" , "Loss of breath" .)

I've seen this clue in the Universal, the L.A. Times Daily and The Washington Post.
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