No such thing as sleep deficit?

There's more and more research that suggest that sleep deprivation is real and that people who accumulate sleep deficits need time to recover from a lack of sleep. This explains how I spent labor day weekend.

For now, the only known cure for sleep deficits are getting extra sleep, something that's hard to do as most people short on sleep are not staying up late watching movies. I liked this article on sleep very much, although it was hard to stay awake to finish it.