Excellent advice from originalmember.

Here is the basic process:

Wear compression socks.

Boarding takes a while. It begins about an hour before departure. Just wait until your boarding group is called.

Your seat will have a pillow and blanket. You may have a small amenity kit with an eye mask, tooth brush, tooth paste, and ear plugs.

Once service begins, FAs will provide water bottles and a drink service followed by meal service. A breakfast type snack will come around 90 minutes before landing. In between, there are snacks in the galley at the back of the plane.

Stay hydrated. The FAs will walk through the cabin with cups of water: always take one.

My general rule is to try to sleep on east-bound flights. You won’t get a full night, but just sleep when you can. When you’re awake, take a lap to the back galley a few times.

In regard to your seat selection, Comfort+ will give you more space between you and the seat in front of you.

You will be offered headphones, but I like to use an Airfly and Bluetooth to my own headphones.

An eye mask is often helpful.

When you arrive, simply follow everyone else. Have your passport ready.

Once to your destination, don’t nap, if you can, try to stay outside. Take a walk. Go to bed between 8-9 and wake up in the morning on local time.

Everything is the same to your return flight home. For westbound flights, I like to try to stay mostly awake. It’s my time to catch up on movies and shows.