[header] How to improve your sleeping position [title] Put a pillow between your legs. [step] Sleeping on one side of your body is known to be one of the most comfortable positions and one of the most common. To make this position more comfortable, try putting a pillow between your bent legs. 
Slide the pillow between your knees and keep the pillow in place as you lay down on your side. This can help to protect your lower back and take the strain off your neck as you sleep.