If you prefer snuggling up in a side-lying position, your back and neck will probably thank you. By keeping your spine elongated and your neck in neutral position, this sleeping stance prevents aches and pains. But while your upper regions might be aligned, your lower area could start complaining. Sleeping on your side puts pressure on your hips, which can make them sore and achy the next day. A few simple stretches can help you ease those aches and pains before jumping out of bed.