We have 2 dogs.
The first is Miranda, my nearly 17 year old whippet. She's too old now to get up on things so she has a very nice dog bed from PetSmart to sleep on and a blanket I cover her up with each night.
Then we have Shadow, our 4 month black lab, who spends the night in a crate by our bed. During the day she sleeps on the couch, shares Miranda's bed or gets in bed with me if I go lay down or watch TV in the bedroom.
I lost Italy, my greyhound, in October but she used to sneak in our bed all the time. Given her size, DH was not too happy. Other than the bed she slept on the couch.