As much as I hate to put this out there because ROT sucks....

Expected: Rot will lose -1 con consistently whether asleep or not.
Result: Never lost con over 25 hour duration if I was sleeping, awake it was pretty consistent. I was able to survive Rot with very low con by just sleeping it off.

Steps to reproduce:

1) Get Rot - YUCK
2) Stay awake - Lose con
3) Sleep - Dont lose con
4) wake up - Lose con
5) sleep for the last 8+ hours of Rot and not lose any more con.

Please please please, say this is by design. I hate Rot.