Maybe I've seen too many horror movies, but aren't you concerned about not hearing an intruder and being able to respond? Maybe I'm paranoid. :)
Is the risk of intruders a real or a perceived problem? How does it weigh with sleep quality?
Frankly, my sleep is so poor that if they mind the noise level they can take what they can carry.
Wear earplugs and adopt a dog. Best of both worlds.