The place you slumber in in the evening also can impact your neck. Sleeping on the side or your back (supine) can set significantly less pressure with your neck than sleeping on your belly (vulnerable). Even so, in facet sleeping, the alignment of the thoracic and cervical backbone is important https://www.theorthopaedicandpainpractice.com/chronic-neck-and-shoulder-pain-relief-strategies-to-reduce-discomfort/