Moved in to brand new home, wake up stuffy in the morning.

We have been waking up stuffy. It only happens overnight when the bedroom door is left closed. I checked, and we have a merv 11 air filter- so we are good there. We also have a hepa air purifier in the bedroom. The fresh air ventilation system was set to off. Maybe the home was too "tight"? Should I switch it to "auto"?

submitted by /u/Yakapo7
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