Hi jayjonbeach,
There are degrees of breathability and there are also degrees of water resistance so there really isn’t a mattress protector that is both completely breathable and completely waterproof (as much as any material can be either). The closest you will find would be the membrane types of protectors that would be “semi breathable” and “mostly waterproof”. There is more about the pros and cons of different types of mattress protectors in post #89 here. All of them have different tradeoffs between their degree of water resistance, how much they affect the feel of the mattress, and how much they affect temperature regulation and there isn’t one that has the best of all worlds.
I would also keep in mind that a thicker mattress protector (or a mattress pad that is thicker yet) can make some mattresses “feel” firmer even if the protector or mattress pad is fairly soft if the comfort layers of the mattress are in the softer range and the thicker mattress protector or mattress pad reduces the ability of the softer foam layers underneath it to contour to the shape of your body. In other words you could have a softer “hand feel” (which is the softness that you feel with minimal compression) but a firmer feel overall when you sink into the mattress more deeply.
Most of the “membrane type” of protectors such as the safe rest have some reviews that say the same thing so it’s important to make sure you follow the care instructions when you wash them and especially when you dry them so they can maintain their water resistance as much as possible.
Yes … it’s been somewhat frustrating since the new site was launched but I will be changing hosts and once the site is transferred to a new server it should start running much faster. It should be complete within a few days.
Phoenix