Of my 4 cats, 2 of them have outgrown scratching at my bedroom door. I have high hopes for the other two - 1 year old Sweets and 2-1/2 month old Mr. Checks. When I go to bed, I close my bedroom door and the cats have the run of the house. (If I were nocturnal, I'd want the run of the house at night, too.) I have also found that if I play with them for 20-30 minutes before I go to bed at night, they will be quiet for longer periods of time. I find that holding string in the air out of their reach makes them jump and they become tired in a short time!

Hope this helps.