Sleeping is a pipe dream, of course. When I see headlines like this I don't know whether to laugh or cry.
Airlines need a seat pitch regulation.
(and before anyone mentions that I could just pay more... no, I work at the public sector and our regulations don't let us to pay for any extras in planes because "austerity" and all that).
Someone mentioned in some other thread there is some airlines looking into having seats that when reclining, instead of pushing the backrest into the space behind you, your seat slides forward, and thereby tilting the backrest.
But this was met with great protests from others who think crushing long legged people´s knees is a god given right.
"If you don't want your knees crushed, you should have paid extra for one of the four seats with more leg room" "they were already taken? Tough luck"
It does seem like truly exceptionally tall people would have a reasonable disability accommodation claim to be put in premium economy if they really can't fit their legs in.
The new Qantas 787 Premium Economy seat however is amazing. Among other things the whole seat tilts back slightly (including the base) and it has an adjustable height foot rest. It was a dream to sleep in and I'd consider paying for it (every flight I take is usually a 20+ hour trip, so..)