It sounds like you're asking your husband to choose between you and his mother - and kick out his dog. In the long run, that never works out. He cares about all three of you, and you'll never be able to fill the shoes of his mother or dog.

I don't see the harm in having his mother's dog muzzled when you visit her. As for your husband's dog, maybe you can take the dog to obedience training yourself. You and the dog might gain a deeper appreciation for each other. You already have something in common - you BOTH like sleeping with your husband, lol.

I may be a little biased. I happen to be a dog person married to another dog person. I have a 140-lb dog that also likes to sleep with us, and we enjoy having her in bed with us. She's my dog, but she serves a GREAT purpose to my husband. She greets him every day with unconditional love, never complains about her day, and she always listens to what he has to say. He has a very stressful job and life - he needs that perk to keep him going. I try my best to provide him with the same, but my dog has me beat by a long shot, lol.