Man, if you want an advice from somebody who had already had to do with a baby bedding in white colors, you knocked on the right door. We have a small baby, Richard and we bought him a bedding not so long ago. it was a cot mattress bedding. With elements of purple and green, but it doesn"t matter, at least as long as the aspect of dirt is what counts. After two weeks we had to change the mattress because the cot mattress was no longer a cot mattress, it was more like yellow. I don"t know what it was caused by, maybe it is the matter of light? Maybe something else. Anyway, that is a rare phenomenon and I cannot really understand what was not okay with the whole issue. They sold us a cot mattress that turned yellow after just a couple of years. That is unacceptable for us and I believe that for many people as well. Now that you still have a change to forfeit that order, you better do that. cancel it and do not start with that white things. better get a brown, grey or black one. Maybe a the crib is going to look strange, but at least you will have no problems with keeping it clean! At least visually. Imagine what our guests must have thought about us when they saw such a dirty bedding? It had to be disgusting for them and nothing strange about it in my opinion.