Below you can see how the sheet protector fits on a Queen Size bed.
It lays across, width wise, so it would cover only the area needed.
And here you can see how it fits on a twin size bed,
covering just about the entire area, minus the pillow location.
This is a great product to have, for whatever the situation may be. It seems like it will last a long time, and save a lot of parents sanity. I know I can definitely see future uses for it, whether that be in my future children's potty training days, or when we finally buckle down and get a puppy ;)
You can find The Epica Ultra Plus Waterproof Sheet Protector on Amazon, for only $13.95 with free shipping. As well as more information and Epica reviews.
I received one or more of the products mentioned above for free using Tomoson.com. Regardless, I only recommend products or services I use personally and believe will be good for my readers.