Last seen in:
- Family Time - May 20 2019
- Universal - May 3 2018
- The Guardian - Quick crossword No 14,943 - Mar 29 2018
- Universal - Mar 1 2018
- New York Times - Dec 7 2017
- New York Times - May 9 2017
- Universal - Jul 27 2015
- Universal - Mar 24 2015
- Universal - Nov 1 2014
- Wall Street Journal - Feb 22 2013 - February 22, 2013 - Best Picture Mash-Up
Related Clues:
- Subject of a sleep study, perhaps
- Nighttime disorder
- Breathing problem during sleep
- Cause of a wake-up
- Breathing stoppage, as during sleep
- Sleep ___
- Literally, Greek for "without breath"
- Cause for carrying an inhaler
- Temporary suspension of breathing
- Temporary cessation of breathing
- Breathing disorder
- Respiratory affliction
- Piggy's problem in ''Lord of the Flies''
- Holding one's breath, essentially
- Concern for some sleepers