Because the child's growth and development is mainly completed in sleep, and sleep time is relatively long, so a suitable mattress for young people's bones, brain and body organs are particularly critical.

因为儿童的生长发育主要是睡眠中完成的且睡眠时间比较长，所以一张合适的床垫，对于青少年的骨骼、大脑和身体各个器官发育尤为关键。

TIPS
A little knowledge of letting a child sleep better
1.he sleeping environment is quiet and dark, room temperature should not be too high;
2. fixed people sleep up time, train the child physiological rhythm cycle;
3.before going to bed to avoid hunger or drinking too much, so as not to disturb sleep;
4.1-2 hours before going to bed, avoid strenuous activities or play too excited;
5.sleep in separate beds. Studies have shown that sleeping alone is better than sleeping with your mother;
6.let the children learn their own sleep, their sleep, the child will wake up naturally go to the next sleep cycle;
7.the sleep time should not be too much;
8.for children to choose a safe and comfortable mattress, sleep well, in order to grow well.

让孩子睡得更好的小知识
1、睡眠环境安静和较暗，室温不要过高；
2、固定人睡起床时间，培养孩子生理节奏周期；
3、睡前避免饥饿或饮水过多，以免扰乱睡眠；
4、睡前1-2小时避免激烈活动或玩得太兴奋；
5、分床睡，研究证明单独睡比和母亲同床睡质量更高；
6、让孩子学会自己人睡，自己人睡的孩子醒来会自然进入下一个睡眠周期；
7、白天睡眠时间不宜过多；
8、为孩子选择一张安全舒适的床垫，睡得好才能长得好

The human spine consists of 33 vertebrae (7 vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 9 sacrum and coccyx) connected by ligaments, joints and intervertebral discs.The upper spine bearing skull, lower hip, with ribs, and as the posterior wall of thoracic, abdominal and pelvic. The spine supports the trunk and protects the viscera,The protection of the spinal cord and movement. The formation of a top-down spinal internal longitudinal spinal in spinal cord.

人类脊柱由33块椎骨（颈椎7块，胸椎12块，腰椎5块，骶骨、尾骨共9块）借韧带、关节及椎间盘连接而成。脊柱上端承托颅骨，下联髋骨，中附肋骨，并作为胸廓、腹腔和盆腔的后壁。脊柱具有支持躯干、保护内脏、保护脊髓和进行运动的功能。脊柱内部自上而下形成一条纵行的脊管，内有脊髓。