Was way too soft for me. To turn over in bed was a struggle. After 2 weeks, the back pain were added. Bin 95kg heavy. Although my wife with 65kg got no back pain but she found the mattress very uncomfortable soft. When sitting, especially on the corners and sides one came up on the slatted frame. Reference is, however, very soft and cuddly like a teddy bear. The thickness of 24cm is great too. After exchange for a H4 mattress we are now both very satisfied.