The reason why the hotel mattress is so comfortable: 1. In addition to the thin mattress, the mattress in the hotel has several layers of thick bed bags, which will become a comfortable layer similar to the mattress, deepening the sense of coverage and softnes...

First designed in the mid-1960s for NASA airplane seats, memory foam is made from a substance called viscoelastic. After it was used in mattress , it becomes more and more popular and widely known by public. The biggest advantage of memory foam mattress is th...