These are controlled by the following Game Settings, which can all be changed in a Merge Patch [vanilla setting, JSUE, my personal preference]: fHCStarvationRate [25, 12.5, 10] fHCDehydrationRate [10, 5, 8] fHCSleepDeprivationRate [50, 18, 10 and stages redefined up to 2400 instead of 1000] fHCSleepRestorationMod [60, 35, 25]