Did you know that approximately 50% of adults report neck or shoulder pain at some point each year?¹ And of all sleep positions, side sleeping is the most common — roughly 74% of sleepers report spending a significant portion of the night on their side.² Yet paradoxically, side sleepers are also most vulnerable to neck misalignment, pressure points, and disrupted sleep. Without proper support, the gap between the shoulder and head can cause the neck to bend unnaturally, leading to stiffness, headaches, and disturbed sleep cycles. The Science of Side Sleep & Neck Pain Why your shoulder-dominant side causes strain When you lie on your side, your shoulder pushes into the mattress, creating a void between your head and the surface. Without adequate fill or structure, your head either tilts upward (overextending the neck) or downward (compressing it). Over time, those micro-imbalances can lead to chronic stress on the cervical spine. Spinal alignment = better sleep architectur...