Originally Posted by CGK
And I think you are travelling in J right? Hope it's in the main cabin, since they do have more space and larger space in the overhead bins.
As a fan of the upper deck, I must add that if you're sitting up there and your carry-on won't fit in the overheads, the crew will gladly store it for you. Of course, that does mean you'll have to take out whatever you want to keep with you, or it will be somewhat more difficult to get if you need it in flight.