Hi sarah and welcome
Different folks have different preferences and budgets.
I struggled for ages with blow up mattress until I found self inflating mats. I went for comfy too, with a therma-rest dreamtime which is like sleeping in my bed at home. here Other people prefer the cheaper airic mats here
Some use mats on top of a camping bed frame.
The design of blow ups have improved apparently but I won't trust them again, got sick of waking up on the cold floor.
Good luck
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets