Is there a better head position for sleeping (and clearing out junk)?

Some evidence would suggest yes.

Sleeping on our sides may be the best position for several reasons, if we can do it comfortably.

Before I present this post I want to add a few disclaimers.

First, there are a lot of unique considerations for individuals, including which sleeping positions are uncomfortable, impair breathing, complicate sleep apnea treatment, etc. A good article I read while preparing this post states: “Sleep habits are highly personal, and the same goes for your ideal sleep position. A side sleeping position has many advantages and fewer drawbacks than a stomach or back position. Ultimately, the position that helps you fall asleep, stay asleep, and get quality rest is the best one for you.”

Second, the science of how our brains wash out the accumulated junk of a full day’s cognitive work while we are sleeping is still very much being studied. There is fascinating stuff to learn, including the magic of the brain’s glymphatic system and washing cycle mode. As a primary care doctor I am not contributi…