Content type: Research Paper

Sleeping between learning sessions reduces the amount of practice needed by 50%, and ensures better long-term retention.

Cite: Mazza S, Gerbier E, Gustin MP, Kasikci Z, Koenig O, Toppino TC, Magnin M. Relearn Faster and Retain Longer. Psychol Sci. 2016 Oct;27(10):1321-1330. doi: 10.1177/0956797616659930. Epub 2016 Aug 20. PMID: 27530500.