It is not completely waterproof. The most annoying thing, however, is that it gathers under the sheet while sleeping. You have to sleep very quietly, in the same position, so it doesn't bunch up.

If I could, I would give it 0 stars. I spent 40€ and I regret my money. It is not waterproof in any way; we had an accident with my son and the mattress got wet. Completely useless. I wonder if it can even protect the mattress from sweat, but I don't see that either. I am amazed at how it has so many good reviews.

Tested with a baby who wet himself in his sleep and the mattress held up until morning, it was dry. Also, the feel of it while sleeping is very good

The first leakage occurred due to the detachment of the diaper, and nothing passed through to the mattress! So it does its job perfectly fine!

I have it for 2 years. I am very satisfied. I came to look for it because I am thinking of buying it again. Nothing goes through the mattress underneath. The bed is 160x200 so it fits perfectly. Overall, 100% satisfied.