The mattress was appointed in Hardness 3, turned out to be much too soft. This pain arose in the lumbar region. Also sitting on the mattress, for example, for reading in bed, turned out to be uncomfortable. Positive reference which appears is of high quality (no sweating). Mattress had crackles, and sometimes noise from the springs. Delivery and returns through Amazon easily jatratze was transported to the 3rd floor and picked up there again.