The waterproof barrier is the real deal—grabbed it after a few late-night spills soaked through my old cover setup. It slides on tight and stays put under the outer fabric, so my pillow finally feels protected.
The liner slips over the pillow without bunching, and that snug fit means no rustling sounds when I shift positions at night. It's saved my outer covers from more than a few spit-up incidents and washes clean with zero fuss.
The waterproof layer actually works—a blowout at 2am soaked the outer cover but the pillow itself stayed completely dry. It zips on in under a minute and adds zero bulk, so I don't even notice it's there. This liner's been a lifesaver for keeping the whole setup clean between washes.