When a player is sleeping in a cryo pod, hunger and thirst still drain. This is definitely a bug, because a cryo pod is supposed to put a person into a metabolic stasis, which should essentially preserve them unchanged. But I guess then a cryo pod shouldn't be used for sleep either since sleep is definitely not stasis and you would be revived from metabolic stasis in the same state you entered it. This would actually give cryo pods a serious and significant difference from beds.

To be fair, I'm definitely thinking of star trek, and I guess that would mean you shouldn't be able to get out of a cryo pod on your own or access anything, which sort of defeats the purpose. But I don't want to take it that far, and I still think it would be useful as a feature to just pause hunger, thirst, and sleep, and only use beds for sleeping.

Since both beds and cryo pods are available for large and small grid (I think), it wouldn't be a big deal for people to change it. It should probably be a config option so existing saves aren't suddenly messed up, but it should be the default for new saves.