We splurged and got Gusto, my 75lb Pit Bull, a Big Barker bed for his 9th birthday. The day it came in the mail he passed out on it within five minutes of it being out of the box.
He has only been able to be sleep comfortably on the couch recently - the problem is that hes a blanket stealer Not even 5 minutes out of the box and he was completely passed out in a way I havent seen him sleep on a dog bed in months (hes always been an awkward position sleeper, but hasnt been in awkward sleeping positions as much recently). Hes starting to get up slower and we want to make sure hes well supported as he continues to slow down and feel his age. Plus the 7 height will help make it easier for him to get up as he continues to age as well.
I wish I had known about your beds for my previous dog (Husky/Shepherd rescue) who had Degenerative Myleopathy. They wouldve been awesome for him! But Im glad I have it to give Gusto comfort throughout his Grandpa years.