Because each person's specific circumstances are different, such as weight, height, fat and thin, as well as personal habits, preferences, etc., in the purchase of mattresses should be based on their own specific circumstances and local climate consideration to be selected. Among them, the most basic requirement is to maintain the physiological lordosis of the lumbar spine when lying on your back, and the body curve is normal. When lying on your side, you can not bend the lumbar spine...

       The selection of mattresses can be done by looking at two pressures, three lying and four checks.

A look: see whether the appearance of the mattress is uniform in thickness; Whether the four peripheries are straight and flat; Whether the cushion surface is evenly covered; Whether the mattress pad uses thick filling material; Whether the printing and dyeing pattern of the fabric is uniform; Whether there are defects such as thread breakage, needle skipping and floating thread in sewing needle and thread.

Two pressure: hand pressure test mattress, should be soft and hard moderate feeling, and have a certain degree of resilience. If there is an uneven phenomenon, the spring wire of the mattress is of poor quality. Qualified springs have good elasticity under flapping and uniform spring chirping; rusty or inferior springs tend to creak under extrusion.

Three lying down: lie down and test the surface of the mattress to feel whether the filler is evenly distributed and the supporting force is complete. Hand to the neck, waist and buttocks down to the thigh between the three obvious curved places to stretch in, to see if there is a gap; then turn over to one side, in the same way to try the body curve protruding parts and mattress there is no gap. If there is none, it proves that the mattress fits the natural curves of the neck, back, waist, buttocks and legs during sleep, and the mattress is moderately soft and hard.

      Four checks: check whether the mattress has factory identification, quality assurance and certificate of approval. If the edge of the mattress is equipped with a zipper device, it can be directly opened to check whether the internal bedding material is clean and odorless. After selecting the mattress, erect it to see if it can stand firm, which means that the frame of the mattress is relatively hard.