The sizes of some mattresses are a little different from what we are used to. It seems that this is no big deal — just buy a new bed base and that’s it. But there is one small thing: the bed sheets. Regular factories make regular-sized bed sheets and they are not the same size as IKEA mattresses.
As a result, you are forced to buy the IKEA brand bed sheets only. The same goes for pillows: for some of them, there is only one place where you can buy a pillowcase. And you know the name of that store.