Originally Posted by
spin88
OP, the only real answer to your question is based upon how big you are. If you are less than about 5'9" and are not obese, you can make it in an E+ seat. Just bring your own food, and a neck pillow, and probably a blanket. If you can hold up your neck and keep from freezing, and bring enough to eat for 16+ hours (usually 16 hours 45 minutes at this time of year) you can survive it.
Fortunately I'm 5'8 and not obese (yet - office snacks are killing me)
It's funny you mention freezing - I was actually going to ask if it was too hot! I as on a VS flight from SFO-LHR and it was sweltering. Thanks for the reminder to layer up!
And as for people suggestion different routes - unfortunately that's not an option due to a variety of reasons, some of which were out of my control.