I bought earplugs the other day because living downtown and with my bedroom window opening onto an alley, its hard for me to get to sleep at night. Who would have imagined that three dollars could bring some bliss. I slept like a baby last night. The level of sleep was much deeper also. I am truly amazed. I found a secondary use for them as well, at work. Sometimes its hard to focus with everyones music and yammering, I put a pair in yesterday and immediately there was silence. People could talk but it was pure quiet.