It has a waterproof layer that prevents any liquids from seeping through. Not real bulky, so it's easy to roll and tuck the blanket under him.

These covers just wipe these drool zones away. It washes and dries easily. Of course, always wash a blanket that has been peed on anyway.

The waterproof coating completely fails and allows liquids to soak through. They leak on my bed. After 2yrs off/on, they live out of state so, not continually. When no weight is on the blanket, it appears to be waterproof.

Just fits, but when you sit dow, it bunches up. A four inch deviation is far more than what's reasonable for a seam allowance. It gets all bunched up between the cushions.