Ear plugs can have amazing benefits for you; in addition to helping you get a peaceful night's sleep or helping you study in a noisy room, they can also protect your health by preventing noise-induced hearing loss (NIHL). If you need some earplugs right away to block out loud noises for an hour or two, then you might consider making some toilet paper earplugs. If you are looking for something to use for a longer period of time, then you might consider making some earplugs out of cotton balls and plastic.