Adequate sleep duration and quality support tear film and ocular surface repair. Nocturnal lagophthalmos (incomplete eyelid closure) is a frequent overlooked driver.
| Practice | Description |
|---|---|
| 7–9 hours per night | Adequate sleep duration |
| Bedroom humidity ≥ 40% | Combat overnight dryness |
| Eye-shield mask if lagophthalmos | Reduce exposure-related dryness |