Some people count sheep, if I can’t sleep I count the towns that we’ve visited on the current trip. It works every time.
Which reminds me of a story we heard in Karijini National Park in WA back in 2015:
“At the (Karijini) visitor’s centre we learn about the history of the area and life for the Aborigines after the Europeans arrived. There is a delightful story about a woman who learned to count while mustering sheep, all 29,000 of them.”