I was initially very enthusiastic about our Babydorm size 1, but with increasing weight of my son we had to retrofit and have encountered this Nachfüllkügelchen. In concept, we find it very fair by the manufacturer, that it offers them separately and thus spared the replacement of size 2 of the cushion. Unfortunately, I find the refilling but difficult than expected - after I had a few handfuls filled until the head is no longer rested, unfortunately I had to realize that the boy seemed the pillow now find uncomfortable and multiply it "slid down" is. So I have again taken a little filling, but I'm not sure how much because now "properly" would. I'll probably take the pillow times with a physiotherapist and be assessed.