If you accept the wrong position, then in the morningyou may experience lower back pain, headache and feeling tired. To avoid all this, the cervical spine during sleep should, together with its other parts, make a straight line.
By supporting the knees, the pillow relieves stress from the spine and helps to straighten it, as well as improves blood circulation in both legs. There is a memory effect. Relieves pain in hips, back, knees.