Having worked 35 years in the "heavy: construction, building and the repair of refineries, fossil fuel power plants, nuclear power plants, etc , it was an extremely high noise (decibel 120-140 ) area. We wore lightweight foam earplugs that you can buy in most stores. Here they cost about $3.00 USD for 25 pairs. at Walmart and they are the same thing we wore in work. They come in sizes. You just roll them between your fingers and insert, they expand to give a tight fit. They also make noise level drastically lower, almost to whisper levels. So for mere pennies, one can sleep uninterrupted. We brought them the last time and will this time and extra for those who have to endure our snoring close by . They work !!!