Sounds like overkill, unless you're wanting insulation value as well.
Carpet and pad on the floor, or double layer of carpet. If it still sounds like a drum when you drop something, consider foam insulation board on the floor from underneath, or rubber horse mats inside.
Carpet half way up the walls.
Get a chair that doesn't squeak.
Edited by TX0303 (08/03/17 02:08 PM)