A recent study observed sleeping participants' pupils during sleep, using a new method that could have implications for ...

Spiritual meaning of sleeping with eyes open will help you to understand this mystery. Sleeping with eyes open is not just a ...

But did you know some amazing creatures can actually sleep with their eyes open? It might seem strange, but these animals have developed abilities to rest while staying alert to their surroundings.

Leveraging your hardwired biology in this way is the most powerful way to improve your sleep. Just one more reason why your ...