"Why We Sleep" by Matthew Walker is an amazing book and talks about this for of stuff and a lot more. Having read it, this is not surprising at all to me. Last year I read ~45 books, this book stood out as one of the best.
One of the things discussed in the book is how inhumane it is having subjects in an experiment deprive themselves of sleep (pull all-nighters); it has lasting effects on the body. As a result it is becoming much less common for experimenters to do this, so I'm a bit surprised at how this study was conducted.
