How long could someone survive in "Sky cell" like prison?

In the fiction, A Song of Ice and Fire/Game of Thrones, one high castle in the mountains, the Eyrie, has so-called sky cells. Those cells are left open to the cold sky.

The Eyrie is 600 foot/180 meter above the valley below. It is astride the peak known as the Giant's Lance, a peak of 3.5miles/5.5Km. For the climate, it can change a lot, but to summerise, its temperate in summer, and colder (with a lot of snow) during the winter. As I would like to know the longest survival time, consider it's during summer, with a temperate climate. The prisoners have clothes and a thin blanket. the valley below, in a mountainous region. As it's open, the prisoners suffer from wind, and probably rain/snow (maybe depending on the sense of the wind though). It is also said that the floor slopes slightly, and the cell is miserably small.

How long could someone survive in such harsh conditions? What is the most probable way of dying between hypothermia, suicide, accidental fall or madness?

posted about 6 years ago

Kepotx‭

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