Experts whether sleeping on a hard surface is actually beneficial for back pain If lower back pain is keeping you up at night, you’re not alone: about one in three adults in the U.S. are affected by such aching, which often results in poor sleep. Some physiotherapists say that lying flat on your back in a star shape (with your arms and legs extending out and away from your torso) or with your knees up takes pressure off the back and can stretch it out. In addition, cooler temperatures near the floor may improve sleep quality and overall comfort, some experts say. Others agree that lying on the floor could have positive effects. The floor may feel especially good if you have an old box spring and saggy mattress. In these beds the pelvis sinks lower than the back because the pelvis area typically weighs more, bending the spine out of alignment. sleeping on the floor isn’t necessarily the best option for any type of back alignment One such curve leaves space between the lower back and the floor. Lacking support, this curve flattens out over time, which can result in back pain. Another problem with the floor: without cushioning to absorb the shoulders, the upper back is often propped up too high, which can lead to joint stiffness. But hunter-gatherers slept on the ground from early childhood and may have built up a tolerance to its ill effects, unlike present-day people who try it for the first time as adults
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