So I arrived in Hong Kong airport at about 6AM after 15+ hours of flying from Los Angeles California. I left California on June 13 at 11:30 PM, arrived in Hong Kong just prior to 6AM on June 15th. I was totally wiped out so I popped down to the rest center and quickly fell asleep on one of the couches. After about 2 hours I awoke, went to get a Starbucks (yes they have one in the Hong Kong airport) and some food.
My wife likes to say Hong Kong airport is "a mall" you fly into and out of. I like to say it's an adventure in exercise, feels like you can walk for miles in this place.
Took these pictures of the Redding Rock in Hong Kong airport: