Bests & Worsts Reviews from Amazon

Our son has been sleeping on this mattress for nearly a year. Up until this past week, we have had no issues. However, no liquids had spilled down the side of the mattress or anywhere that wasn't covered by an additional waterproof cover, until this week. The additional waterproof mattress cover we had on the mattress only covered the entire top of the mattress but not the sides. Sometime in the last week, our son overturned his bottle between the crib rails and it leaked its contents down the side of the mattress, unbeknownst to us. When I went to change his sheets, I discovered that the bottle had leaked, soaking the sheet, the mesh non-waterproof part of the additional cover, as well as INTO THE MATTRESS itself. The mattress was completely soaking wet, multiple layers in. Although Colgate claims it is waterproof, in our experience, it absolutely is not. Merriam-Webster defines waterproof as being impervious to water, which to me, means that liquids will not penetrate the mattress at all. This mold developed and grew to this level within 3-4 days, max. We are horrified that our son was sleeping on this molding mattress, even for a few days. For anyone buying this mattress or who has purchased one in the past- please purchase a zippered waterproof cover for this mattress to ensure that this doesn't happen to you. It scares me to think what ill effects sleeping on this mattress would have had on our son if we hadn't caught it early. This should not have happened, given how the mattress is advertised by the manufacturer.