National Sleep Foundation (NSF) CEO David Cloud will step down at the end of the year after leading the organization for 13 years. During his tenure, NSF transformed its programs and websites, pioneered sleep technology standards, developed its public sleep guidelines, and launched an award-winning journal. He leaves the NSF with $13 million in reserves, an amount the NSF characterizes as “healthy.”

In a release, Cloud says, “Clearly communicating the relationship between sleep and human health set the stage for the explosive growth in sleep health products and services we are witnessing today. It has been an honor to be a part of that change and watch it come together. The next phase promises to be no less exciting, but it is also a natural time for me to step aside.”

Cloud will be working with the NSF throughout the transition. After careers with the American Medical Association and as the owner of an association management company, Cloud indicated he is weighing private and public sector opportunities.