Cognitive accessibility is imperative. Digital experiences are ubiquitous and becoming increasingly essential for self care, safety and independence. Cognitive barriers to access may be experienced by individuals who are neurodiverse, have a range of cognitive and/or learning disabilities, are experiencing extreme external stressors, and individuals with a range of mental health considerations. Making Content Usable (http://w3.org/TR/coga-usable) is supplemental guidance from the W3C that helps designers and developers create more cognitively accessible experiences. The Task Force that published this guidance is now researching intersection with mental health. During this session, we will break down the document, help attendees understand how and when to use it, and discuss our research process for the next version.