For the night flight over

Eye masks, earplugs, and an inflatable neck pillow might help you rest on the flight through the night. Some people take something like a Tylenol PM at the beginning of the flight to increase the possibility for sleep in a sitting position. It is generally better on your system if you drink plenty of water and get up a few times during the flight. Airline food is seldom award-winning. Take some dried fruit or an apple and some almonds, etc. just in case.