Learn to read mate, and nope people have sit for years on phones without bending hell I sleep sometimes with my phone in bed and it's not rare for me to wake up and find it getting "chrushed" by my weight with no damm bend.
Stop defending this lol this phones are more fragile than they need to be.
I'm not defending anyone but putting your phone in your back pocket and sitting on it is really dumb. Really dumb. You deserve whatever condition your phone will possibly be in.
Sleeping and lying over on your phone is different than these tests. The bed is soft unless u sleep on plywood. And your body is soft and has curves. I'm sure an iPhone 6 would be fine.