Waking Up For Christmas by Jill James

Christmas is the time for wishes to come true. All Chase Thanos needs for the holidays is for his comatose wife to awaken. Darcy Bennett Thanos has been his whole life since they were in college. Now, twenty years later, their marriage and their lives have fallen apart and the only thing that can put it back together is Darcy coming out of her coma and remembering all they had and could have. Just as soon as she wakes up for Christmas.