Arc fault circuit interrupters (AFCIs) are prone to "nuisance tripping," which is probably what you're experiencing. AFCIs are designed to sense an arc. To solve the nuisance tripping problem, start with things you can do yourself. Unplug or turn off surge protectors plugged into bedroom outlets, fluorescent lights with electronic ballasts, and lighting controls with LED displays that are on the AFCI circuit. They sometimes allow current "leakage" that can trip the AFCI. Damage or deterioration to wires or cords (which can happen when furniture is pushed against plugs in an outlet) also causes arcing faults and will trip the circuit. If you identify one of these sources, you'll have to either replace the electrical item or leave it unplugged. Another, very popular problem is that you may be plugging something in that has the switch in the "on" position. If so, a small arc can occur while plugging in the light, vacuum cleaner, or any other item. This arc is likely to trip the breaker giving you the impression that the circuit was not energized. Even after resetting the arc-fault breaker. Be sure that your item is in the OFF position prior to plugging in for use.