Masks and sleep can be related in a few ways:

1. *Sleep mask*: A sleep mask is a mask worn over the eyes to block out light, helping to improve sleep quality. It can be especially useful for people who have trouble sleeping during the day or in bright environments.
2. *Sleep apnea mask*: A sleep apnea mask is a device worn over the nose and/or mouth to help manage sleep apnea. It delivers air pressure to keep the airways open, promoting healthy breathing during sleep.
3. *Relaxation and stress relief*: Wearing a calming mask, like a face mask, before bed can help relax and soothe the skin, preparing the body for a restful night's sleep.
4. *Better sleep habits*: Establishing a consistent sleep schedule, creating a sleep-conducive environment, and practicing relaxation techniques can help improve sleep quality, much like a mask can help improve skin health.