Seriously, this is totally different. Exped has a separate sack that you squeeze pump multiple times over. While the OP was just "blow air in" style big openi

Seriously, this is totally different. Exped has a separate sack that you squeeze pump multiple times over. While the OP was just "blow air in" style big opening. Looks to be about a ten fold difference in effort and time. Just look at the two videos - can you say with a straight face that they're doing the same thing?