Professor Hiroki Ueda, Assistant Professor Daisuke Tone, Lecturer Koji Ode, and Qianhui Zhang (4th-year graduate student at the time) at the University of Tokyo showed that CaMKIIβ, a predominant protein kinase expressed in neurons, is involved in prolonging sleep duration via facilitating sleep onset and inhibiting awakening.
Click here for original story, Elucidation of proteins controlling the sleep and awake transition
Source: Phys.org