Well,
Being in diapers for over 40 years!
I'll say that Abu seems to be the best for the thicker plastic like on the original pampers...now, the store brands which were around back 30 years ago...if you age on site is correct...are/were much thinner!
Not sure about huggies as I've personally never used them, my mom was a pamper buyer and continued with papers till I was way way to big for them, and used tape for extenders...till I was in middle school then I started taking care of it myself and switched to the pharmacy brands...which took a bit to get used too...only used depends a few times back in the 6 tape days '90ish...
I too have a big deal with feel, but I now always use a pair of briefs over diaper (helps with any fluid between layers) and my Gary nylon cover...
The few times I've tried to sleep without (had a chux underneath me) I couldn't sleep...also even staying in a hospital bed for quite some time I couldn't get used to it and sleep well...thankfully I'm back in my normal bed (crib) and now have no neck brace as of today, although my neck is super stiff, up now getting my assistant to try to massage it a bit, see if I can get some sleep, she comes on at 5am...
As for ocd, my gf (yes we are sorta back together for those in the know) is ocd about cleaning and organizing the kitchen/bathrooms...my only advise is try real hard to forget about it, or just make it impossible to do/complete the old task when your in little space...
Ex. Wear locking pajamas and diaper cover when doing little time, so you can't check or see the obsession...if you do this enough it tends to stay out of your mind...imho