Ask for a room in the quietest area of the hotel. Far away from lifts, service areas, housekeepers stores etc.. Also worthwhile checking that none of the housekeeping staff aspire to musical theatre and consider corridors an acceptable rehearsal space.
And convinced you have taken all the necessary steps, you drift peaceably and gently to sleep. Two minutes later, the phone rings. It's the reception manager checking your room is OK and wishing you a nice stay.....