Related Clues:
- Breathlessness
- Transient cessation of respiration
- Interrupted breathing
- Breathing trouble
- Sleeping issue
- What might prevent you from staying out?
- Sleeper's concern
- Breath stoppage, as during sleep
- Nighttime breathing problem
- Subject of a sleep study, perhaps
- Nighttime disorder
- Breathing problem during sleep
- Cause of a wake-up
- Breathing stoppage, as during sleep
- Sleep ___