For those possibly considering purchasing a Forever Lazy, you should know that the name should have been Forever Lousy.
The problem with these is that the fleece material most closely resembles gauze...not only can you see through it, but you can see through four layers of it. So, if you're buying these because it sometimes gets down to 70° in the winter, they'll be fine. If your house is in the 60s in the winter, they're fine until you walk in them. At that point, the wind cuts through them like a hot knife through butter.