Rear air bags on 2005 Buick Rainier

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Is it normal for the rear air bags to let all of the air when it sits over night? Every morning the rear end is almost on the ground then takes a few minutes to inflate itself when i start the engine.
(2) Answers
nope, you have an air leak. take it to a shop and have them check it and give you a bid

yeah you definitely have a leak somewhere in the system