Modafinil is often credited with exactly this effect.
If I understand it right, it makes you feel awake “when you should”, but doesn’t actually replace sleep.
Exactly. It doesn’t replace sleep, but (according to the US military study) removes all the “can’t concentrate”, “can’t stay alert”, “uncoordinated”, and “stupid decisions” effects of no sleep.
Modafinil is often credited with exactly this effect.
If I understand it right, it makes you feel awake “when you should”, but doesn’t actually replace sleep.
Exactly. It doesn’t replace sleep, but (according to the US military study) removes all the “can’t concentrate”, “can’t stay alert”, “uncoordinated”, and “stupid decisions” effects of no sleep.