Israeli fighter pilots undertaking exceptionally long-range missions face a challenge that no aircraft can eliminate: staying alert, focused and ready for combat even when their bodies are desperately demanding sleep.
By Hezy Laing
The battle against exhaustion
Israeli fighter pilots undertaking long-range missions against Iran have faced an extraordinary physical challenge: remaining alert and combat-ready after spending many hours in the air, often with little opportunity for proper rest.
During the 2026 operations, reports described individual missions lasting more than 30 hours, placing enormous demands on the aircrews responsible for carrying them out.
The danger is not simply that a tired pilot might feel sleepy. Sleep deprivation gradually undermines concentration, memory, reaction time and decision-making, all essential abilities inside a combat aircraft.
One particularly dangerous phenomenon is microsleep, an involuntary episode in which an exhausted person briefly falls asleep, sometimes for just a few seconds. In a fighter cockpit, even a momentary lapse in awareness can have serious consequences.
Preparation begins before takeoff
The Israeli Air Force does not rely on medication to solve the problem of fatigue. According to a March 2026 report in Ynet, its approach begins well before a mission, with careful attention to sleep, nutrition and each pilot’s physical condition.
The report described how preparations for particularly demanding missions can begin well in advance, with sleep schedules and periods of rest carefully managed to help pilots arrive at the cockpit in the best possible condition.
In a particularly revealing detail, the Air Force has paid attention to something most people would never associate with advanced military aviation: pillows. According to Ynet, the military invested considerable effort in improving pilots’ sleeping conditions, recognizing that even seemingly minor details can influence the quality of their rest.
The preparation also extends to nutrition and hydration. The same report described how the Air Force has adapted food arrangements for long missions, allowing pilots to eat during flight while maintaining adequate fluid intake.
These measures reflect an important principle: preparing a pilot for an exceptionally long mission does not begin with sophisticated aircraft systems or medication. It begins with ensuring that the person flying the aircraft is as physically prepared as possible.
When sleep alone is not enough
Despite careful preparation, some missions place demands on pilots that go beyond what ordinary rest can fully address. In these circumstances, the Air Force has additional measures to help maintain alertness.
One of them is modafinil, a prescription medication originally developed to treat sleep disorders such as narcolepsy, a condition that causes excessive daytime sleepiness and involuntary sleep episodes.
Modafinil promotes wakefulness through several chemical signaling systems in the brain. Although it differs from traditional amphetamines, it can have side effects and does not eliminate the cognitive consequences of prolonged sleep deprivation.
Israeli reporting in March 2026 revealed that the medication was offered to aircrews facing exceptionally demanding operations. Its use was voluntary, and pilots interested in taking it were required to undergo testing under medical supervision on the ground to identify potential side effects before any operational use.
A military source quoted by Ynet emphasized that the medication was reserved for exceptional circumstances and that only a small number of pilots used it.
The distinction is important: keeping pilots awake is not the same as ensuring they are fully rested. Modafinil can also interfere with subsequent sleep, making careful medical supervision essential.
Managing the body’s limits
The medication is only one part of a much broader approach to maintaining pilot readiness. The Air Force’s preparations take into account the effects of sleep deprivation, which can accumulate over several days rather than simply appearing after one particularly long flight.
Pilots may be given carefully planned rest periods and opportunities to recover lost sleep when operational circumstances permit. Food, hydration and the timing of activity are also considered as part of the preparation for demanding missions.
This is especially important because a pilot who has slept poorly over several consecutive nights may face a much greater challenge than someone who has missed only a few hours of rest before a single flight.
Technology still depends on the person in the cockpit
Modern Israeli fighter aircraft are equipped with sophisticated navigation, radar and cockpit systems that help pilots manage complex missions, including operations at night. These technologies provide essential information and support, but they cannot replace human judgment.
Pilots must still interpret information, monitor their aircraft, communicate with other forces and make decisions as circumstances change. In combat, those decisions can have consequences far beyond the cockpit.
The Israeli Air Force can equip its pilots with advanced aircraft, sophisticated electronics and carefully supervised medical support, but it cannot change one fundamental reality: every mission ultimately depends on a human being who must remain alert enough to make the right decision.
