After about ten nightly "accidents," I can say that it does its job very well. Not a drop passed through to the mattress. Also, there is no sound of plastic when you move, like in other waterproof protectors, and additionally, your body doesn't sweat from the nylon. I sleep many times with the little one and I can give an opinion. I will buy a second one at the first opportunity.

Unfortunately, I was not satisfied with this specific mattress. The border is less than 30 centimeters (at least in the ones I received) and the elastic is loose, the fit is not particularly stable. As for absorbency, it is almost non-existent. If water falls on it and I don't remove it immediately, it penetrates the mattress within a minute and wets the bed. And it has happened more than once.. On the other hand, in contrast to their absorbency, every time I have put them in the washing machine, they have not suffered the slightest damage or distortion of their seams, they are very durable and I have had them for 2+ years.

I am super satisfied! The quality of the materials seems great, it didn't suffer anything in the washing machine. It stays very stable on the mattress and the main problem I solved is that the sheet doesn't come off its place.