Oh gulp! Erm, good, but
Rob Benham, retired airline skipper and author of The Perfect Code
Answered just now
Was just a bit of detritus left from a copy of a post on Quora, a science forum which I burden with my thoughts on astrophysics. Someone asked a question on sleep and of course I didn't miss a beat.
The book is Why We Sleep by Matthew Walker. ISBN 978-0-241-26906-0
I'll head back and get rid of those lines. But the irony: the protagonist in my book hardly ever needs to sleep - but then, like Maggy, he's not human.