Sleep Positioning

Back sleeping is favored because it distributes human body weight over a large surface area when neck and airway mechanics are managed. Side sleeping is not described as universally harmful, but the article argues it is difficult to maintain a well-supported side posture all night. The prone position produces the worst jugular vein blood flow outcome among the tested positions. The right lateral position produces the best jugular vein flow rate among the tested positions. The left lateral position produces the second-best flow rate but is reduced compared with the right side position. Back sleeping is described as the least efficient configuration for glymphatic transport. Side sleeping is presented as the most efficient sleep position for glymphatic drainage in animal-model research. Large-scale direct human imaging evidence on positional glymphatic efficiency is still developing. The core intervention involves positioning the head of the bed higher than the heart during sleep. Sleep posture is presented as a repeated structural input that can affect sleep quality, pain, and recovery. A firm body pillow or wedge can make rolling onto the back passively uncomfortable during sleep.…