Perfect undersheet (cotton and waterproof but "breathable" polyurethane layer) Large cups for thick mattresses and well elasticated: the undersheet stays in place !!!!

Very thin sheet, more like a plastic film than anything else. I'm very disappointed with the quality of this product.

This organic cotton undersheet is breathable, which was one of the criteria for choosing it?

The undersheet is of good quality and allows the mattress to breathe, although it's a little thick (but doesn't get in the way under a fitted sheet). We already had two for our child's bed, and bought one for our sofa bed.

Nothing to complain about. We bought the same cover a few years ago.