When you sleep, your eyes undergo specific movements and changes. Initially, as you drift off, your eyes may slowly roll back and outward, a phenomenon known as Bell's phenomenon. After this initial movement, your eyes will eventually stop moving for a while once you enter a deeper sleep stage, until you later enter REM (rapid eye movement) sleep.
In summary, here's a breakdown:
| Sleep Stage | Eye Movement | Description |
|---|---|---|
| Falling Asleep | Slow roll back and outward (Bell's phenomenon) | Eyes gradually move as you transition into sleep. |
| Deep Sleep | No movement | Eyes remain still. |
| REM Sleep | Rapid and random movement | Eyes dart around rapidly behind closed eyelids. |
