What are the factors affecting the comfort of the sofa?

In fact, when many people buy a sofa, they may first choose the style and material of the sofa, and ignore the size of the sofa, let alone the height and slope of the backrest of the sofa. There are many types of sofas on the market, with different styles. At this time, we must move out of ergonomics to choose sofas. Let "the body determine the brain", and make your body feel comfortable and not tired after sitting for a long time, is the correct posture of the sofa.

According to ergonomic research, the sofa's sitting height is most suitable between 350mm-420mm, which means that the height of the sofa seat should be similar to the height of your calf. Choose a height a little lower than your knees to avoid the weight of your torso on your legs. Too low will make the whole body fall into the sofa, causing the hip joints to form an acute angle, causing back muscle tension. When choosing a sofa, try sitting and see if your knees and hips are in a straight line.

People of different heights actually have different requirements for the sitting width of the sofa. Generally speaking, a depth of 550mm-950mm is the most suitable size. A sofa that is too deep is also very tiring to lean against.

If a husband and wife buy a sofa, the height of the husband and wife is very different. It is best to choose the depth of the sofa according to the height of the tall man, because tall people have long legs and the depth of the sofa is too short to adjust the posture.

There are three types of chair backs currently on the market: high, medium and low. The high back can provide support for the neck, waist, and back; the middle back provides lumbar and back support; the low back can only provide lumbar support.

People of different heights have different choices of chair backs. According to ergonomic research, the most suitable height is when the height of the backrest is 68cm-72cm from the ground to the top of the sofa backrest. And the slope of the backrest is best at 92°-98°, so that the backrest matches the curve of the human neck. If it is too upright, it will make the neck even more tired by pressing against the head.

Sofas with a low backrest + cushion type are very popular in the market, and different hardnesses have different functions. The seat cushion, backrest, armrest and other body parts supported by the sofa will vary in softness and hardness.

For the choice of soft and hard, you need to follow these three principles: the neck should be soft-a little softer can better fit the neck curve. The waist should be hard-a harder one can provide support and protect the waist for people who spend a long time on the sofa. The buttocks should be hard-the cushion is too soft, the buttocks are not supported, and bottoming is likely to occur around the seat bones.

When choosing a sofa, be sure to choose a few more postures to try sitting. If the sofa is suitable for you, your body will tell you the answer.