Where did diaper doublers go????

I only have nightime accidents. Does anyone know what happened to the infant diaper doublers you used to be able to find everywhere?? I sleep on my side and used to freely place a doubler both in the crotch and on my side. They were soooo cheap and worked great, but I can't find them anywhere and have gone back to using plastic pants over my diaper. I can't even find the booster pads Depends make anywhere (although I have no idea how well they even work). : (