Sleep deprivation is not like torture - it is a form of torture, a tactic favoured by the KGB and the Japanese in PoW camps in World War Two.
The British Army was also accused of using sleep deprivation to extract information from suspected IRA members in 1971. Going without sleep is intensely stressful, with unpredictable short and long-term effects. People lose the ability to act and think coherently. And as it leaves no physical mark on the victim, the interrogator can claim that they never laid a finger on those in their charge.
After two nights without sleep, the hallucinations start, and after three nights, people are having dreams while fairly awake, which is a form of psychosis.
By the week's end, people lose their orientation in place and time - the people you're speaking to become people from your past; a window might become a view of the sea seen in your younger days. To deprive someone of sleep is to tamper with their equilibrium and their sanity.
Menachem Begin, the Israeli prime minister from 1977-83, was tortured by the KGB as a young man. In his book, White Nights: The Story of a Prisoner in Russia, he wrote of losing the will to resist when deprived of sleep.
"In the head of the interrogated prisoner, a haze begins to form. His spirit is wearied to death, his legs are unsteady, and he has one sole desire: to sleep... Anyone who has experienced this desire knows that not even hunger and thirst are comparable with it.
"I came across prisoners who signed what they were ordered to sign, only to get what the interrogator promised them.
"He did not promise them their liberty; he did not promise them food to sate themselves. He promised them - if they signed - uninterrupted sleep! And, having signed, there was nothing in the world that could move them to risk again such nights and such days."
So I ask, if you were forced to stay awake for 5 days, and your sole promise was to get some sleep, wouldn't you tell the interrogator anything he wanted to hear-true or otherwise-just to get some sleep? Wold you sign anythig, say anything, confess to anything?
Just wondering