Tye wears them ALL the time in the house. He will be 6 this December, when we rescued him he was 3 and had not been neutered or house broken and would be constantly.
We had him neutered but it didn't change the fact that he had learned it was ok to mark and pee everywhere.
So to keep him out of trouble and me with a clean house, he is never without it in our home. For a little guy, he must be all bladder, because he can pee any time