I found the thread! Yea!
Reading through, its awesome to see this:
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There's nothing to do about it with the current version, but I would be happy to add an ini setting or two for this. The best I can think of, are two new settings that go something like this:
; Set the *maximum* hr of Sleep needed to catch up, regardless of how long you have been awake. Set to 0 means no specific max value.
set RSE.maxNeededSleep to 12
; Set the *maximum* additional hr of Sleep needed for each additional hr awake when tired. With high endurance, the number may be less. Set to means to use the normal value calculated from Endurance + minWake/enduranceFactor
set RSE.maxSleepWhenTired to 0.5
What do you think?
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I think this would be awesome. Cumulative sleep penalties are for teenagers who don't know how sleeping works

My son being one of them (sleeps all weekend). You cannot make up for lost rest, its a physiological impossibility.
An ini toggle like above that caps max sleep needed would be a PERFECT addition to this mod.
I would also like to offer up the script attached to my bedroll mod for your included bedrolls... Sleeping outside in the woods, or a cave becomes a "little" more dicey... (Chance for wandering monsters, cannot sleep in oblivion gates). Its here:
http://www.tesnexus.com/downloads/file.php?id=2524
Don't use the bedroll itself, the thing is old as dirt - but I've sure been missing the 1% chance to get ambushed by goblins or some other nasty while sleeping outside...