ok! Through some sleuthing and researching, here is what I found out, I was reading what you have linked to about the layering, but I’m not really sure how the thicknesses of the layers factors in, with the weight/lb. involved?
The Visco Bed Boss Heir ET has:
Soft Blended fiber cover
1" heat dissipating bamboo infused visco quilted in cover
3" of 5 lb Visco Memory Foam in pillow top
7" high resilience base foam
The Visco Bed Boss Crown VT has:
13" Super Pillow Top Design
Soft Blended fiber cover
1/2" heat dissipating bamboo infused visco quilted in cover
2" of 5 lb Visco Memory Foam in pillow top
3" Visco foam cut in 9 alignment zones
7 1/2 Poly base in 9 alignment zones
The Visco Bed Boss Revolution has:
15" Boxtop Design
Soft Blended fiber cover
1" heat dissipating bamboo infused visco quilted in cover
5" of 5 lb Visco Memory Foam in pillow top
3.5 comfort support base reflex foam
5.5 high resiliency foam
Thank you again, Phoenix, for your time and heart to give counsel.