The Serenity Deep Pocket Waterproof Mattress Pad is very nice. I didn't expect a twin XL but it does fit my twin and I just fold the rest underneath. It's also very easy to put on with just one person. With my toddler, I can change the bedding frequently with accidents in the night. I find that I don't have to worry about the actual mattress and that the mattress pad is much easier to use. It dries pretty quickly and does not have the stink to it after. I would rather use this than have to wash my  mattress all the time.