So you really want to strive to get the best possible sleep you can. That includes sufficient rapid eye movement sleep. And we have multiple zero-cost resources for that at hubermanlab.com. We have the episode on mastery or sleep. We have the episode on perfecting your sleep. We have the toolkit for sleep. All of which are time stamped and all of which can be accessed to completely zero cost to try and get your sleep as good as possible, including lots of rapid eye movement sleep.