Easy to use. This mattress is soft, so the springs are soft and there is a sponge on it. More comfortable. The quality is too high, and the miscellaneous brands are also expensive. I still believe in branded goods, and JD.COM likes them more and more. The mattress is moderately soft and hard, with three centimeters of latex. There are babies at home, paying special attention to environmental protection and safety. This is tasteless. It is very comfortable and satisfying to lie down. The mattress is very heavy and good, with a thickness of 20cm. Lying down is very soft and has strong support. I haven't used it yet. I will evaluate the real experience after using it.