Time "asleep" is not a good enough measure of sleep. You wouldn't judge an animals diet based on how much time they spent eating. It is a poor proxy. I have a

Time "asleep" is not a good enough measure of sleep. You wouldn't judge an animals diet based on how much time they spent eating. It is a poor proxy. I have a dog in this fight, as my start-up (https://soundmind.co https://soundmind.co) is focused on improving Sleep Performance. The neurological function of your brain while you sleep. Sleep is not only made up of distinct stages (Wake, N1-N3, REM), but even within those stages there are neurological processes such as Slow Wave Oscillations (our current focus), Sleep Spindles, K-Complexes, and more. We also have a lot more to learn about sleep. Only if researchers were tracking not only the stages of sleep, but also these deeper processes would we be able to fully understand how the sleep of primates (or any other animals) compares to human sleep.