you can have 110dB of higher-frequency sound that's mostly blocked by even a thin motel wall.
i have a (claimed) 113dB alarm clock, and while it's quite hard to sleep through, the sound decays pretty fast even within the apartment. you can barely hear it at all in the hallway.
anyway, sometimes you really do need earplugs to go to sleep, and an alarm clock to wake up. :-/