Base causing noise
A noisy mattress is most often caused by a loose bed frame or when the modular base rubs on a metal bed frame. If your modular base is placed inside a bed frame, we recommend tightening the frame. If this does not resolve your issue, we recommend attaching legs to the modular base. Legs can be used in place of a bed frame.
Pump (Firmness Control™ System) causing noise
Though faint, you may be able to hear sounds from your Firmness Control™ system when you are changing your Sleep Number setting. To muffle the sound, put the Firmness Control system on a carpeted floor. If you have hardwood or tile, try placing a rug underneath so that the sounds do not echo off the flooring.