We bought kurl on mattress during my marriage. Its so tight and heavy to handle, also back pains a lot. I had already used this mattress before and I felt comfortable and that is the reason we got the same during wedding purchases and I felt I made a wrong decision.
Few mattresses on the same brand is good and few are not. I will suggest old people not to use this brand as they will seriously get back ache and there is a possibility of getting spinal problem.