We bought a mobile home with a master bedroom that consists of an ensuite and master bathroom. The three rooms combined are 20 feet by 20 feet with their own electrical breakers. We bought our home new and have lived in it now 9 years. My question is this, the breaker in the sleeping area is tripping, is it possible it is beginning to wear out?
Yep, they DO do that when they get old, especially if they've had a number of VALID trips. I've replaced a lot of old failing breakers that couldn't sustain even half their marked rating.
It's easy & cheap to check that by replacing the breaker with a new one of identical ratings. If the NEW one trips, you DO have a problem that needs resolution. If not, you're done & can forget it.