That’s what ups are for.

When I was in the navy, when the ventilation would go out there’s a fire somewhere (real or excersize). There’s a fan next to your head in your bed (annoying AF). When it would go out, you’d wake up in fear, jump out of bed and put on your clothes asap before the fire will be notified over speakers. After 5 months at sea, I couldn’t sleep without a fan next to me. Waking up in fear multiple times every night. Luckily that’s all over now. Now I can’t sleep because the world is so fucked up.

Meanwhile me with a fan that can be plugged into a power bank via USB-C

Definitely how I feel when the power goes out and I can’t use my CPAP, get absolutely shit or zero sleep, I need to get a generator at some point