It is not good to sleep on a hard bed. How about sleeping in a soft bed? It is customary to think that the wire spring bed is the most advanced and comfortable, but it is not, because no matter which posture is taken, the middle of the body will sink and the trunk will form an arc, which will overload the ligaments around the spine and increase the physiological curvature of the lumbar spine, which will cause low back pain for a long time; Especially for patients with osteoarthropathy such as lumbar disc herniation and proliferative spondylitis, sleeping in a soft bed for a long time will aggravate the symptoms. In addition, sleeping in a soft bed often makes the muscles trapped in the mattress unable to relax, and the internal organs of the chest and abdomen are easily oppressed and can not get enough rest.
It is obvious that the bed is too hard and soft. The ideal bed should be moderate in hardness, and the cotton pad with a thickness of about 10 cm has the best hardness. Such a thick cotton pad can meet the needs of human body surface curve, maintain the integrity and normal physiological curvature of the spine, and is beneficial to sleep and health.
Besides the hardness of the bed, we should also pay attention to its height. The height of the bed is generally about 40~50 cm, that is, it is better to be slightly higher than the knee of the sleeper. So you don't have to work hard to get into bed. You can stretch your legs and wear shoes when you get out of bed.
The bed should be wider. Generally speaking, its length is 20~30 cm longer than that of the sleeper, and its width is 30~40 cm wider than that of the sleeper, so that it can stretch when sleeping, which is beneficial to blood circulation and fatigue elimination.