Is it easy for a brown mat to become concave in the center? I bought a three hundred Shu Meida hard brown mat at the beginning of one side is concave, with a few days both sides are concave!

Hard brown mat, this is coir, coir is divided into hard brown and soft brown, hard brown is made of environmentally friendly adhesive bonding, hard no elasticity, soft brown is made of natural latex bonding, soft elasticity, the price is more expensive than hard brown. Coconut palm is made of coconut shell silk, its silk is short, toughness is not strong, itself contains sugar, although after treatment, but can not be 100% no insects. The hard brown made of environmental protection adhesive bonding, hard, hard to press the sound of nuisance, easy to break.

You use this a few days on the bad, is the quality is not pass ah, try can not be after-sales, not if you can not, re-buy a good one.

To be cheap, recommend the new out of 3E coconut palm, this alias has 3E coconut Wei, etc., its production process is a mixture of coconut fiber and polyester fiber, the upper and lower sides of the polyester fiber blanket hot-pressing production, its density, breathability is not strong, but supportive, hard, there is a softness, the price of some more expensive than the coconut palm; hot-pressing mattress should not be close to a humid environment, it is recommended that the use of 3E coconut palm with a DuPont Anti-mite liner cover. DuPont anti-mite cloth has breathable waterproof anti-mite function.

To be more expensive, we recommend the mountain palm mattress, mountain palm mattress hard with soft, supportive, elastic, breathable, mountain palm flakes filaments with good toughness, does not contain sugar does not bear insects, corrosion resistance and durability, can be woven handmade mountain palm mattresses, palm-shingled beds;