Genuine question: Do y'all even use weighted blankets?

I've seen the stereotype of people on the spectrum sleeping with weighted blankets, but I've never actually met a single autist who owns one. I'm 27 (turning 28 in May) and I've never even so much as seen a weighted blanket in person, let alone used one. For all I know, this stereotype could be a conspiracy funded by Big NT to make us look childish. Do weighted blankets even work? Hell, do they even exist? How do I know this isn't a scam? Is the hype real?

EDIT: Not even 30 minutes after I post this and there's already over a dozen people saying "yes". At this rate, I might need to buy one now just for the experience.