Here are a couple of ideas for TRAVEL PILLOWS! Mr. Eisenmann has BOTH...the most famous is the 'buckwheat' U shaped pillow, but the favorite of Mr. E is the J pillow, which won a travel invention award in the UK in 2014! They cost about $15 on Amazon and you can find them by googling J PILLOW.
Award winning J PILLOW
BUCKY BUCKWHEAT TRAVEL PILLOW
It's VERY important that your NECK and LOWER back stay comfortable on a long-haul (over 7 hours) flight! Since we are on one of the BEST airlines that fly to Australia (Qantas), the seats will be pretty comfy, BUT, you SHOULD invest in a comfortable and portable travel pillow!