Can people sleep with their eyes open and if so how?

Yes, people can sleep with their eyes open, although it is not very common. This condition is called nocturnal lagophthalmos, and it occurs when the eyelids do not close completely during sleep.

Nocturnal lagophthalmos can be caused by a variety of factors, including:

- Nerve damage

- Thyroid problems

- Eyelid abnormalities

- Certain medications

People with nocturnal lagophthalmos may experience dry eyes, corneal abrasions, and infections. Treatment options for nocturnal lagophthalmos include:

- Artificial tears

- Eyelid taping

- Surgery