Get the Good Night Sleep You"ve Been Waiting for! When you sleep the weight from your hips causes your mattress to dip and your spine to curve; when you wrap your legs around the body pillow you keep your spine straight reducing strain and pain. Body Pillows help reduce back pain! Can also be used as support against the back to hold body in place sideways and take weight off areas of pain. Many ways to use and finally get the good night sleep you need !