What would you add to the list? I definitely second the cashmere socks!
In fact, I’d put together a complete sleep-kit for a loved-one’s carry-on–something utilitarian but also a little luxurious. And what’s more luxurious than getting good rest on a red-eye? Toss an eye mask (the kind that lets you blink during REM sleep), a double-inflating neck pillow (for wedging to the side or back of your neck), a pair of socks (cashmere if they’re lucky, or some classic Wigwams), and a pair of earplugs into a Baggu zipper pouch; stash it under the tree and they’ll be eternally grateful.
[Photos from our 2010 trip to India: (1) Arriving in Delhi as the sun rose (2) Aron on the overnight train from Jodhpur to Delhi]