Because of the bustle and hustle of the big city, Hong Kongers are under great pressure in their work and daily life. Therefore a good rest is of utmost important to them and making the choice of a suitable mattress is not a trivial matter. Below are some of tips on how to choose and maintain a mattress. The vertebral column is the main skeletal support to our body. Whether you are working, walking or sleeping, the vertebral column should be well protected. Our vertebral column is not actually vertical and straight at all. Instead, it is "S" shaped. The right choice of mattress that can support and maintain the original shape of our spine, can help to improve our posture and help to eliminate backaches and pains. Harder springs in the middle of the mattress provides powerful support for the hip and so protecting the spine. If the mattress is too soft, it cannot support the hip which is the heaviest part of our body. An appropriately hard foam ensures contact between the body and the bed, keeping the spine at the correct "S" shape. Spacing between the waist and the mattress occurs when the mattress is too hard, which prevents the back muscles from relaxing. Invert the mattress every month (or not longer than every three months) to ease uneven pressures caused by the weight of the body on the mattress. This helps in maintaining the flatness of the mattress and prolong its life. Never fold or bend the mattress, or stand and jump on it. Keep the mattress well ventilated, and use bedsheets at all times to protect it. Avoid using old or non-matching box springs on new mattresses. King Koil - The ONLY mattress endorsed by : Hong Kong Chiropractors' Association (HKCA) International Chiropractors' Association (ICA)