u/Far_Gift6173

So the issue is this:

Grace wakes up and is all shaggy since his hair kept growing.

The others didn't have such growth, but if they died long before Grace woke up, shouldn't the have been bloated because our gut baeteria starts breaking down the bodys?

An alternative I could see, is the system recognizing this and pumping them full of chemicals to preserve them and keep them from contaminating the ship