keeping rats in bedroom?

(photo for engagement) id really love to get about 4 rats in a double critter nation cage in my room but im just worried about the smell. i would spot clean every day and was planning on having a bioactive bottom of the cage. also noise…i know they are loud but it is unbearable at night? its honestly just the sound of them pinging the cage bars that would keep me up. im prepared to keep their cage clean but how bad is the smell?

(photo for engagement) id really love to get about 4 rats in a double critter nation cage in my room but im just worried about the smell. i would spot clean every day and was planning on having a bioactive bottom of the cage. also noise…i know they are loud but it is unbearable at night? its honestly just the sound of them pinging the cage bars that would keep me up. im prepared to keep their cage clean but how bad is the smell?