I recently came a far away along on other aspects of my mod, but even with healrate reduced by 100... I somehow regenerate health when I sleep. How can I disable this? (And I have to avoid altering anything vanilla when doing this, or else it'd be worse than not altering it at all).

Can someone please give me some advice on this matter? I'd be really grateful if anyone knew what to do about this. That all said... I am starting to wonder, worrying if healing while sleeping is hardcoded, or can't be changed without altering vanilla settings... I hope not.