You sleep only for as long as the cat thinks you should be allowed to sleep, and not a minute more. This is one problem you don’t have with pet turtles.
Our cat Missy used to bring pipe cleaners to bed so I would toss them across the room so she could chase them and bring them back. This is one reason why it’s not wise to indulge in riotous living far into the night. Your cat will make you pay for it.