Well, in my experience hamsters seem to be pretty heavy sleepers when they are on their sleep schedule, especially syrian hamsters. My dwarf robo hams tend to peek their noses out from their nests when they hear someone close by, but they quickly fall asleep again.
I live in a small apartment, most of my rodents are kept in the main living area which includes our kitchen and living room which are open to each other. So needless to say there is usually allot happening around the cages. I like to listen to music, watch Tv, my husband Smoo even plays guitar sometimes, and the rodents never seemed disturbed. So I wouldn't worry about it. The only way you could cause sleep deprivation ( if thats even possible for a hamster
) would be to be constantly picking up the cage or jostling it. So I dont think you have much to worry about.