| Awesome grade | 13 |
| Average raiser | 14 |
| Sleep disorder | 14 |
| Breathing problem | 17 |
| Sleep problem | 13 |
| Sleep disturbance | 17 |
| Breathing disorder | 18 |
| Breathing anomaly | 17 |
| Sleeping problem | 16 |
| Nighttime breathing disorder | 28 |
| Asphyxia | 8 |
| Sleep lab subject | 17 |
| Sleep disturber | 15 |
| Sleep disruption | 16 |
| Sleeper's breathing problem | 31 |
| Respiratory ailment | 19 |
| It's breath-taking | 22 |
| It takes your breath away | 25 |
| Suspension of breathing | 23 |
| Snorer's problem, often | 27 |
| Sleeper's woe | 17 |
| Sleep ___ (breathing problem) | 29 |
| Sleeping disorder | 17 |
| Sleep clinic study | 18 |
| Nighttime problem | 17 |
| It may cause snoring | 20 |
| Breathlessness? | 15 |
| Breathing irregularity | 22 |
| Temporary cessation of breathing | 32 |
| Snoring cause | 13 |
| Snorer's problem, perhaps | 29 |
| Sleeper's difficulty | 24 |
| Sleep clinic concern | 20 |
| Nocturnal disturbance | 21 |
| Loss of breath | 14 |
| It'll take your breath away | 31 |
| Heavy snorer's problem | 26 |
| Halt in respiration | 19 |
| Certain sleep problem | 21 |
| Breathless condition | 20 |
| Breathing woe | 13 |
| Breathing interruption | 22 |
| Bedtime woe | 11 |
| Transient cessation of respiration | 34 |
| Suffocation | 11 |
| Subject of a sleep study, perhaps | 33 |
| Snorer's problem, maybe | 27 |
| Sleeping issue | 14 |
| Sleeper's problem | 21 |
| Sleep-clinic study | 18 |
| Sleep trouble | 13 |
| Sleep lab study | 15 |
| Sleep clinic topic | 18 |
| Sleep breathing problem | 23 |
| Sleep anomaly | 13 |
| Sleep __ | 8 |
| Nighttime disorder | 18 |
| It'll keep you up | 21 |
| Intake interruption while asleep? | 33 |
| Concern for some sleepers | 25 |
| Cessation of breath | 19 |
| Cause of a wake-up | 18 |
| Breathing trouble | 17 |
| What might prevent you from staying out? | 40 |
| Trouble in the night | 20 |
| Temporary suspension of breathing | 33 |
| Temporary loss of breath | 24 |
| Temporary halt in respiration | 29 |
| Temporary breathlessness | 24 |
| Temporary breathing stoppage | 28 |
| Temporary absence of breathing | 30 |
| Sometime sleep phenomenon | 25 |
| Snoring problem | 15 |
| Snoring cause, perhaps | 22 |
| Snorer's problem | 20 |
| Snorer's disorder | 21 |
| Sleeper's concern | 21 |
| Sleep study diagnosis, perhaps | 30 |
| Sleep malady | 12 |
| Sleep lab concentration | 23 |
| Sleep irregularity | 18 |
| Sleep disorder that means "breathless" in Greek | 57 |
| Sleep ailment | 13 |
| Shortness of breath | 19 |
| Respiratory arrest | 18 |
| Respiration problem | 19 |
| REM disrupter | 13 |
| Reason to see a hypnologist | 27 |
| Problem treated with adaptive servo-ventilation | 47 |
| Problem that some people have in bed | 36 |
| Problem in bed, for some | 24 |
| Problem in bed | 14 |
| Problem for a bulldog | 21 |
| Nighttime breathing problem | 27 |
| Literally, Greek for "without breath" | 47 |
| It might make you snort | 23 |
| It might keep you up at night | 29 |
| It can put a stop to your dreams | 32 |
| Interrupted breathing | 21 |
| International Association for the Development of ___ (organization that oversees the sport of freediving) | 105 |