Side sleeping is arguably the most recommended position for the average healthy adult due to its versatility and array of health benefits. Lying on the side can be particularly effective in reducing snoring and mild sleep apnea by keeping the airways more open compared to back sleeping, and it is the standard recommendation for pregnant women to improve circulation to the fetus. However, to maximize the benefits, it is crucial that the head, neck, and torso are kept in a single, straight line, which often requires a thicker pillow to fill the gap between the shoulder and the head.
