Coldsleep

By converting some of the recreation space to storerooms and adapting the storerooms thus cleared to the purpose of cold-sleep, the ship was roomy enough.

Source: wiktionary

He had always believed Arcadia lovely, an undespoiled planet waiting for man like a bride, more than worth decades in coldsleep aboard a spaceship, toil and danger of pioneering, isolation from the rest of humankind.

Source: wiktionary

Damnation, he was quite capable of refusing to let me cold-sleep.

Source: wiktionary

The escape capsule in which he'd cold-slept had had another minor malfunction that left him staring drugged and half conscious through the port glass at open space for two days before the cryogenic process had kicked in.

Source: wiktionary