How to Sound Proof the Floor Under a Bed

Measure the length and width of your bed. The dimensions of your bed will determine the amount of impact barrier that you need.

Buy an impact barrier according to the dimensions of your bed. The impact barrier should be slightly larger than the dimensions of your bed. Depending on the size of your bed, you may need more than one impact barrier. Online retailers such as soundproofcow.com and soundprooffoam.com carry impact barriers.

Rip out the carpet under your bed with a utility knife. Make sure it covers the area that the impact barrier will cover. Completely clean the floor underneath. Use a mop with soapy water to clean the entire area and sand off any leftover adhesive with sandpaper until the floor is smooth.

Put the impact barrier in the room for 24 hours to allow it adjust to the room temperature. Temperature is important for the barrier to work properly. A barrier that is too cold will not function properly.

Remove your bed and place the impact barrier in the place where the bed will be located. Start in one corner of the area place the barrier with the fiber side down. Continue to lay impact barrier sheets down in rows ensuring that they are all flush together.

Tape the seams of the impact barrier together with duct tape to keep them tightly together.

Cover up the impact barrier with old carpet for further soundproofing. Make sure the carpet is level and has no waves or bumps before placing your bed on top.