Being a material scientist I don't fall for such marketing. Whatever they have claimed makes actual sense. Airflow inprove hogi toh localised heating nahi hoga. PUF ke jagah EVA ka grid banaya hai which will give better support and won't sink. Also, jab relative se accha word of mouth feedback suna toh ye lena hi tha.Iss jamane mein koi chiz "aachi" nai milti...they make fool of you by clever marketing tactics and influencers are just there to make money... nothing else.... it's like iske pehle ppl never used to sleep on mattress and everyone had severe back issues....sab marketing gimmick hai...kuch log samaj jate hai and they never fall for this...kuch log der se samajte hai...
But you are right about one thing. Aaj kal sirf marketing ke jhase me aake can't get a clear picture about the product. That is when review / feedback come in handy.