I wouldn't trust an electric blanket folded, unless you had a small one. They make them in a lap warmer size. Then, you'd still have to put it on a frame, and close the frame and blanket in with a secure over-covering to keep them from crawling between the layers. the thing is that the heating pads are water proof. And the one that people are using is machine washable, though an electric blanket would be washable also. Let us know if you decide to go that route, and let us know how it works. I brooded 46 with 2 XL (ea 12 x 24) and a L 12 x 15. It was very crowded, but they made it through ok.