A new special issue titled “Cognition an Perception: Sleep and Cognition” just appeared in Current Opinion in Behavioral Sciences. The issue was edited by Michael Chee and the CRCN’s Philippe Peigneux. The review articles approach sleep and cognition from a wide range of topics. Read here how the structure of sleep and intelligence might be related (Ujma, Bodizs & Dresler). The science behind the interaction between chronotype, or the interindividual variations in sleep/wake cycles, academic performance and and sleep is reviewed by Gomez Fonseca and Genzel, while Talamini and Juan review sleep as a treatment opportunity for affective disorders. The special issue is partly open access, including the linked articles.