Traveling around can be a lot of fun as long as you find a way to stay comfortable through your journey. The Napwrap might help. It is designed to support your arms and help you maintain a good posture as you get some rest and sleep in your seat. The Napwrap is a personal travel armrest made of breathable mesh and cotton velour. Just slip it around one arm and crisscross it to create a sling for your arms.
The Napwrap can also be used as ear muff, eye mask, and phone holder. Want to carry your luggage more conveniently? The Napwrap can help with that as well. It can be yours for under $20.