Originally Posted by
craigthemif
Actual experience is I sleep in a flat bed and don't sleep when upright...
They aren't comparable experiences. A fairly common perspective would be that PE is survivable on a daytime flight, but UC is the only way to go for an overnight when you need to sleep.
I am in 100% agreement with
craigthemif here.
I've taken dozens of overnight VS flights in both Upper & Premium. I'll almost always sleep in Upper, but never Premium. My strategy for Premium is to stay awake for the entire flight and force myself back into the timezone I am travelling to - not for the faint of hearted, but it works.