I work 3-4 nights a week 1800-600. On my days off I tend to stay on the same sleep schedule (up all night, asleep all day). I find I usually have a desire to workout around 2am. I live in a small town with one gym that's open very limited hours. I tend to spend most of my time off sitting on the couch watching TV. I know nothing about exercise bikes except that I don't mind them. I have a weird gait so tread mills are a no go, and i dislike elliptical's.
I'm looking for a stationary or cycling bike (recommendations on which is better?). I want something that's fairly quiet (down stair's neighbors). I'm hoping to only spend around $300 but that numbers not set in stone.