The scope of Research Directions: Sleep Psychology includes any research outputs that advance efforts to answer the core questions on the psychology of sleep and circadian rhythms. The best way to understand if your work fits in the journal is to read the open questions. If your work addresses an open question, please submit your work to it. If your work is not currently addressed by an open question, please consider submitting a question paper to get the discussion moving on that topic. We welcome sleep-related questions emerging from all branches of psychology.