Multifunctional folding Solid Mattresses Japanese lazy Tatami Single Office unmarried lunch spoil Mattress King Queen Size 1 dimension 3-6cm error/weight 0 is allowable 2 you want one other size,please touch us 3 volume of the goods is huge In order to facilitate transportation, we fold and pack the mattresses Therefore, the dimensions and thickness of the goods will shrink to different degrees after you receive the goods But don’t worry, unfold the mattress flat on the bed After a few days of standard use, Will get better four to the lengthy distance transportation problem,the Produ may be somewhat fold ,not so flat as picture,but would not influence the Use