It is quite difficult to get a "sufficient" delta-V for an interstellar
sleeper mission with TL9 reaction drives. Perhaps the Oort cloud.
Reactionless is another matter, of course.
Hyperdrive craft could use cryosleep if the technobabble requires it
(like Aliens) or if it is a long voyage. But a bunk and total life
support are marginally lighter than a cryonic capsule at TL10, and much
lighter at TL11+. They are cheaper, too.
A question would be how long people can realistically live in 3E-style
bunkrooms. 100 cf for the bunk, the space between the bunks, a share of
the communal toilets and showers, galleys and mess halls. Understandable
that people would take cryosleep if it was safe. Of course one could try
to make the ship faster instead of taking heavy and expensive cryosleep
units.
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