Can you afford a few days? Stay a night. Next day, after housekeeping cleans your room, wait until they move down the hall a few rooms away and put out the do not disturb sign. Turn on the TV to a normal volume and do your thing. There will be less people there at that time, as has been stated. Housekeeping will have already been there that day, so hotel staff will not bother you.
Also, if possible, get a room on the ground floor. If you start stumbling around or fall, it will not disturb the room below you and the noise will be less because the vibration from the fall will be absorbed from a more solid substance and not transmitted through wooden structure.
If you want proof of my ground floor advice, find a wooden bench or similar structure and jump on it a few times. Then try jumping on concrete. You will notice a HUGE reduction of noise on the concrete.
One last thing I will note, my job sometimes requires travel. I have stayed in many hotels all over the US. Not sure if it is law, or just the policy of every hotel I have stayed in. No matter how many days you pay for, the do not disturb sign is only good for 3 days. Then they must conduct a welfare check. Was told this by a hotel employee in Indianapolis when I was booked for a week there. On the third day, I was awakened by housekeeping knocking. I was a bit angry, and told them I work night shift, the do not disturb sign is up, what is your problem? I was told that people often die in hotels, and sometimes suicide. They are required to check the room every three days.
Sorry for the long response, just wanted to convey what I know of hotels (in the US) and qualify my answers. :)