Mine's $3000/6000, I've luckily been in good enough health to not hit it. It's been the right choice for me; the amount I've saved into my HSA vs employee contribution to our more expensive health insurance option will more than cover hitting the max for a year.

I was looking into sleep studies recently, a quick google suggests a cost range of $600 to $5000. I'd definitely shop that around, and if a place won't give me a price then I wouldn't consider doing it.

But like you said, I'm pretty small potatoes compared to sick people.