Headroom in 3rd gen Tacoma camper shell

I'm curious, anyone sleeping on or have experience sleeping on a bed platform with a camper shell, how much headroom is there from your bed platform to the roof of your shell?

I'm currently looking at a Snugtop XTR Gen2, or Leer 100XT

 

I’m running a cab height ARE shell, I have a plywood platform built into the slots on the side of the bed. It’s okay... I’d like to be lower. I cant quite sit up straight. I didnt like the look of higher toppers, but thats a good option. Have a sit in your box and see where your head comes up to on you back window.

 

If your looking for a more headroom you could check these guys out, I don't have the system but looks interesting.
https://topperezlift.com

 

Wow, that's sick! A lot of $$$ though.

 

That's how I feel as well, not into the hi-liners, though they make more sense.. I figure I'll have around 24" from my platform bed to the roof, sound about right? All bedding included?