I have a 12 year old husky, recently she had ACL surgery. She has been starting to urinate in bed while sleeping. She recently urinated on the furniture while sleeping. This only happening since she had the surgery.

Urinating in her sleep should not be directly related to the surgery. However, some things related to the surgery such as medications, mobility could possibly come into play. But older dogs can develop incontinence issues, or she could have developed a urinary tract infection. Best to call her vet and let them know what is going on.