An article about bottlenose dolphins and killer whales states that new mothers go with little sleep for months at a time:
Scientists have discovered that baby bottlenose dolphins do not sleep at all during their first month of life. Their mothers hardly get a moment’s rest, either. They begin to sleep normally again only after several months, as their calves become less active.
The findings surprised scientists because sleep had been thought to be vital both to growing offspring and adults.
The article questions if there is an untapped parallel where more productivity can be gained from the plebian class:
“Their bodies have found a way to cope, offering evidence that sleep isn’t necessary for development, and raising the question of whether humans and other mammals have untapped physiological potential for coping without sleep.”
Surely the US military will pay for some research / testing soon.