Is Premium Economy the Sweet Spot for Flights Under 8 Hours?

So I just read that Qantas and Air France are using an 8-hour 'sleep threshold' to decide when premium economy makes more sense than business class. Basically, if your flight is under 8 hours, they say it's not worth shelling out for a lie-flat seat in business. Makes sense, right? On a 7-hour flight, you'd probably only get around 3-4 hours of actual sleep after meals and announcements.

For those shorter flights, premium economy might be the better deal. You get extra legroom and better service without paying 3-4 times more for a flat bed you won't use much. I think it's pretty smart of airlines to recognize this and market their cabins accordingly.

What do you guys think? Would you go for premium economy on a shorter flight, or is business class still worth it for the perks? And for those who've flown both, is there a big comfort difference on these shorter journeys?

I've done a few 6-7 hour flights in both premium economy and business. Honestly, for the shorter ones, premium economy is plenty comfy for me. I mean, the business class perks are nice, but if I'm not really sleeping, it's hard to justify the extra cost. Plus, with premium economy, I still get decent legroom and better food than the back of the plane. That said, if it's a night flight and I need to be on my game the next day, I might splurge on business just to be a bit more rested.

I've done a few of those shorter flights and honestly, premium economy is usually my pick. The extra legroom is nice, and the food's typically better than in economy. I don't really need a lie-flat seat for such a short time. But if work's paying, I'd still consider business just for the lounge access and faster check-in. Anyone else think the lounge access alone might tip the scales for business on short flights?

I'd go for premium economy on a flight under 8 hours. Business class is awesome, but if I'm not getting a full night's sleep, I'd rather save the money. Plus, premium economy usually has enough comfort and better food than economy. I've flown premium on a 7-hour flight before, and it was totally fine for me. Curious if anyone feels the same way or still thinks business is worth it for the shorter trips?