My pupy is six monthsold and she has worms I have a 3, day dewormer treatment and her third day will be tomorrow but my question is is it harmful for me if she sleeps in my bed also I think she has round and tape worms

Worming your animal isn't going to affect you in any way unless you ingested the wormer as well... And than I would advise to contact poison control and go to the Emergency room... But if you want your dog to sleep with you, worming him/her won't do anything to you.

If you are concerned about a worm overload in your dog, I would suggest a trip to the vet for a fecal. You don't want to worm your dog with just anything. Specific types of worms need specific types of wormers. If you continue to worm your dog and nothing is dying, than you're more than likely developing a "super" worm that is hard to kill. Since you are suspecting she has both round and tape worms, you need to get a wormer that is going to kick butt on both. A lot of store bought wormers aren't strong enough and the worms remain after these treatments.

I suggest a vet visit. Ensure that your wormer either killed the worms, or get her on the right wormer to kill the worms.