this is based on 2 wild roaming matriarchs
they don't sleep that much at all , only an average of 2 hours per night mainly between 2 and 6 am and often standing up
most previous studies have been done with captive elephants
for this study please see PLOS ONE 1 MAR 2017 N Gravett et al INACTIVITY/SLEEP IN TWO WILD FREE ROAMING AFRICAN ELEPHANT MATRIACHS DOES LARGE BODY SIZE MAKE ELEPHANTS THE SHORTEST MAMMALIAN SLEEPERS?
If you just put elephant sleep plos into Google you should find it
I tried a link but it did not work
Edited by COSMIC RHINO, 12 April 2017 - 09:05 AM.