I am not sleeping much this week, but mostly due to knee pain that is keeping me awake. I hear you, though! It's awful to be short on sleep all the time. Sorry you are going through this.
I have never had that many tooth extractions at one time before (just one or two at a time). But remember, dentistry has truly advanced a huge amount during our lifetimes. They are very good at controlling pain now. When I had my implants and those associated extractions done, I asked for laughing gas and that made it much less stressful for me. Then afterwards my oral surgeon gave me hydrocodone and some non-prescription stuff (Tylenol? I don't remember, something like that). I didn't really need the hydrocodone.
As for the price, it sounds unavoidable. It's never any fun to have a big bill like that, but it's even worse that you are losing sleep over it. My sympathies!