Eargrace Noise Reduction Plugs for Sleep Eargrace Noise Reduction Plugs for Sleep ($20) might have a lower SNR of 31DB, but their unique design keeps customers coming back. Most earplugs have a cone or T-shaped structure, but Eargrace's oval-shaped plugs were designed to replicate the shape of a human ear canal. This makes them much more comfortable and efficient at blocking noise. Image Source: amazon.com Eargrace Noise Reduction Plugs for Sleep $20 from amazon.com Buy Now