A comment
They bought a bed in Ikea, but I honestly admit initially and did not think to buy a mattress there, we wanted to buy it in a specialized store. But in the end they turned for him to Ikea. According to the recommendations of the seller, they purchased a Hovog mattress of medium hardness. Its advantages are that the mattress springs are independent, that is, they are not connected in one block. I felt all the advantages of these springs much later, when we had a baby, with adulthood, he categorically refused to sleep in his crib. So with this mattress, I easily euthanized a child, and then I could safely roll away from him and go about my own business.
The mattress is actually more than satisfied, the warranty extends as much as 25 years, and this already says a lot. I advise you, a very good choice at an affordable price, and wonderful quality!