Unzip your mattress cover to expose the air chamber.
Check the hose at the head of the bed to be sure it is firmly connected. If it is loose, reconnect it; otherwise, continue to Step 3.
Check the connectors for tears or breaks.
Inflate the bed 15 points over where you would normally have it set.
Remove the hose and put the white cap that came with your mattress over the connector on the air chamber.
Put the bed back together and sleep on it. Call Sleep Number customer service if your mattress loses air while capped.