| CPAP refusal |
| Intolerance of CPAP pressure |
| Intolerance of CPAP interface |
| Nasal problems (e.g. dry nose, nasal congestion and post-nasal drip) |
| Claustrophobia during CPAP usage |
| Difficulty initiating sleep with CPAP |
| Dry mouth |
| Unintentional removal of CPAP during sleep |