I hope you woke up more gently than I did.
Around 4 a.m., the hardwired smoke alarm went off for no apparent reason. The last time this happened, my landlord couldn’t be reached for several hours (Christmas holidays) and I tried desperately to figure out how to shut it off. As a result, I suffered permanent hearing damage. (PRO TIP: Had I known at the time, I would have asked my doctor for steroids, which would have prevented that.)
Anyway, I texted him and asked him to come over and shut it off — but he’s in Portugal, of all places, and won’t be back until tomorrow. He told me to go into the building basement and shut off the breaker.
It only took me an hour before it was stopped.
And of course now I have too much adrenaline in my system to go back to sleep. :<