Is there a dog equivalent of catnip?

I ask this because there is something inside the stuffing of my brain dead dog’s bed that is making her act the way one of my cats reacts whenever he is around catnip. I know the bed is stuffed with cedar but I can’t help thinking that there must be something else in there or in the bed’s fabric that is triggering her reaction. She drags the dog bed around and starts digging at it, then she rolls around like she’s been really hitting the chronic. She even seems to get the munchies afterward as she heads straight for her dog bowl. I don’t think it’s the cedar because I believe her old bed was stuffed with that as well and I have never seen this behavior from her around that one.
Has anyone else noticed behavior like this from their dog? Could there be something like “dognip” or is my dog just nuts?