I bought this because my senior dog (a  75 pound setter) was walking the floor all night keeping everyone awake. He loved a kennel when he was a puppy so I thought this might make him feel more secure. He fit perfectly in this with his bed and was able to walk around in it without waking us up. He got used to it after the first night and sleeps like a puppy again. Inside this he can still see us as he sleeps in our bedroom, but now has his own space. He even sleeps in it during the day without the door zipped shut.