I think it depends what you want really. I think a few members- including me, could see various concerns with your method as you described it recently. So, it you post it in detail, I would prepare yourself for more concerns being put forward.
Personally, despite the safety measures you mentioned, I would still have concerns about the risk of fire. So- on the one hand, I'm not sure if it would be good to post it because, immitating it I imagine could put others at risk. On the other hand, it might give everyone the chance to iron out any creases and make it as safe as possible.
I didn't want to keep criticizing you on the last post but, from what I remember, I still had concerns. You mentioned you would have some sort of cover over the hot coals to stop you making contact with them. That cover would need to take your body weight- if you pass out. It likely wouldn't stop things like hair and clothing from slipping beneath. I imagine it would also be very hot- like a grill pan mesh. If your skin comes into contact with that, I imagine it will cause intense pain and make you panic to get away from it. I'm not sure what type of fixing would prevent the blanket from pulling loose if you are violently moving around underneath.
It's not to say it can't work but, it seems very risky to me. I assume you are planning to do this indoors also? Obviously, CO can put multiple people at risk. Fire- even more so. So, I suppose it's a method I have concerns about generally.
I've considered it myself as a backup method but, I would more likely buy a tent and do it outside.