I've been to a third world country like that where it's CONSTANT horn blowing, motorcycles, mopeds, cars, rickshaws, etc - it is annoying as fuck, but you just eventually tune it out like the blacks do with the fire alarm chirps.
Because there's no air conditioning in these places generally, I remember laying there with the windows open, unable to sleep due to the constant noise. Eventually, maybe just after midnight it would stop, and you could fall asleep from exhaustion, and then like 6-7AM it would start back up full force again.
