Recommendation
Recommendation
Have you ever treated yourself to a massage? During any therapy session where you lie on your back, your therapist will place a pillow, wedge, or other object under your knees so that your body isn’t lying completely flat.
When lying flat on your back, your lower back is pulled upward, causing increased muscle tension in the lumbar region. This muscle tension can lead to pain, depending on the elasticity of your muscles. The reason this doesn’t happen when we lie on our side is that we automatically draw our legs up, which relaxes precisely these muscle groups.
At night, however, the body lies flat on its back because there is usually no corresponding elevation of the thighs in bed. Since far fewer relaxation movements are made during sleep, the muscle tension leads to pain signals. These, in turn, increase the tension—a vicious cycle. This is responsible for many cases of back pain in the morning. Even when lying on your side, a slight elevation of the thighs up to the knees makes sense: Since the knees are narrower than the pelvis, the legs pull downward in the side position and tilt the pelvis. This movement also affects the spine, especially in the lower lumbar region, leading to compensatory tension in the corresponding muscles. Proper leg support is essential for restful sleep on your back and relieves pressure on the back muscles when lying on your side.