There are many ways to soundproof a room, and contrary to what some blogs and forums say, stapling old egg cartons to your walls isn’t one of them – though it might give your walls a cool recycled look! To prevent sound from traveling from one room to another, you need to work with products that block noise from traveling through the drywall or wall studs. Some products you might want to look into are AudioSeal Sound Barrier, Green Glue Noiseproofing Compound, and Resilient Sound Isolation Clips.