Heated Mattress Pads or Electric Blankets on the Sleep Number® Bed or Other Air Mattress?
Select Comfort Sleep Number Beds
Here is what Select Comfort (the manufacturer of the Sleep by Number system) says about this: Heated mattress pads and electric blankets can both be used with your Sleep Number® bed but should not be used with a FlexFit™ or Flexfit+™ Adjustable Base. Both options, and other comfort layers we have available, are a great way to customize your sleep experience. Please note that the use of a heated product with the mattress will cause your Sleep Number® setting to vary. These variations are completely normal and they do not mean your mattress is losing or gaining air. Rather, they reflect the varied pressure in the air chamber due to the temperature difference.
Other Air Mattresses
Heated mattress pads are not recommended to be used with regular air mattresses like the Aerobed® or the Coleman® ones. Heated pads and heated blankets will void their warranties. Additionally they will not heat very well anyway since their heat output will not warm the massive amount of air inside.