I also find the Mighty can get a little hot-ish if you're sucking a lot or at high temps.
It's not as uncomfortable as some vapes I've tried, but "hot vape mouth" is a thing I try and avoid nowadays and it turns me off cheaper, smaller vapes or the likes of the Grasshopper, though I have not tried it yet.
@CarolKing is right that glass seems to have a cooling effect and I'd like to know if those glass Mighty mouthpieces work in that respect, as I think they claim to. I'll try find a link for you:
https://www.vapefiend.co.uk/mighty-crafty-easyflow-glass-mouthpiece.html
Then something I did a while back with other vapes, I had this plastic medical tubing 2 or 3 feet long. Well I got another one lately and I tried it on the Mighty, ooh it was nice!
I was able to lie back in bed with tasty cool vapor on hose feed!
It will never be too hot at the end of the whip even at high temps.
And it should only cost you you pennies, depending on how fancy you want it to look/taste!
Call into any auto store or maybe cattle/equestrian supplies place, or if you know someone working in a hospital they could find you some.
Could also buy a whip at any vape store, Magic Flight do them or Arizer for EQ