Despite its benefits for spinal symmetry, back sleeping carries critical risks, making it the absolute worst choice for anyone suffering from or prone to obstructive sleep apnea or severe snoring. In the supine position, gravity pulls the tongue and soft palate backward, directly contributing to airway collapse and potentially dangerous breathing interruptions. Moreover, without proper neck support, back sleeping can easily intensify cervical spine issues, and experts advise against the "Coffin" variation—with hands crossed or resting on the chest—as it can introduce unnecessary strain or discomfort during the deepest cycles of sleep.
