Whether you usually sleep soundly or you have trouble sleeping, this is the worst position to sleep.
Changing your favorite position can be challenging, actually, the worst position to sleep was the one I used to prefer and it took some time to change the habit.
The "free fall" position is usually characterized by lying on your stomach, your arms around your pillow, and your head turned to the side.
Sleeping on your stomach prevents your spine to be aligned and it usually takes its toll on your neck.
While you sleep, your spine should be aligned and the curves of your back and neck should fall naturally.
When you are lying on your stomach, and your head turned to your side, it puts stress on the ligaments of your neck exacerbating the eches and creating new ones.
It is better to sleep on your side or your back with a proper pillow. Make sure you leave your electronics out of your room, avoid heavy meals and alcohol and keep your bedroom cool and dark.
Sleeping well is paramount for your wellbeing, it is actually great for your skin as well.