Concerned about size of rear bed in 2720

My popup bed is 70X79 and very roomy and comfortable...probably as comfortable as home bed (maybe it is the fresh air rather than the bed). I notice the rear and bigger bed in the 2720 is only 60X78.

I need to stay with the 2720 size due to
1.) Need to store in garage
2.) I am keeping current TV, a 2004 Ford Explorer Sport Trac

Being just over 6' and liking roominess of my popup bed I have question:

How comfortable is it for two adults in that size bed?

All opinions are appreciated.