Plenty of Leg Room

From a June 2004 document at the Cryonics Institute, the "Cryostats Status Report":

Currently the Cryonics Institute has nine cryostats in service for storage of cryonics patients in liquid nitrogen...

Although we have some patients who are quite tall and/or obese, we have not yet experienced any problem fitting six patients into one of our cylinders. There would be even less problem in the rectangular units where the patients lay flat and are simply stacked on top of each other 3 or 4 layers deep. In the cylinders the most crowding occurs in the area of the chest, with general narrowing toward the feet (partly due to the variation of abdomen and hip girth for men and women). There is plenty of leg-room.

The cylinders and capsule are filled once weekly, whereas the rectangular units are filled twice weekly. The depth of liquid nitrogen ranges from 7.5 feet at the lowest to about 8 feet just after a refill. The level of liquid nitrogen in the most efficient cylinders drops only a bit more than 2 inches in a week (We will soon start filling these cylinders only once every two weeks.) So in the cylinders our tallest patients, at about six-and-a-half feet have at least a foot of liquid nitrogen above their toes at all times. Should a disaster occur -- which has not happened since we began service in 1976 -- the feet would be the first to suffer exposure and the head the last.