Get an Ipad, earphones, a seat charger and download some movies or shows to to it. Makes the trip seem a lot less consequential. It would be a great opportunity to binge watch something like game of thrones, downton abey or vikings.
I have a little DVD player that I purchased for airplane use. On recent flights, I have been on planes that have plugs for electronic devices, or movie apps that you can use to download movies to your iPad. (Hint: you should download the app on your iPad before boarding the plane. The internet on the plane is *very* slow.) Some planes have monitors in the backs of the seats so that you have a selection of entertainment. My favorite is the map that shows the current position of the plane, along with altitude and ground speed. When I was on a flight from Tokyo to Dulles last year, the plane reached an amazing 806 knots ground speed.
With all of that entertainment, however, I usually just fall asleep on the really long flights.