Heres da rules for Armor and sleep:
Sleeping in Armor
A character who sleeps in medium or heavy armor is automatically fatigued the next day. He or she takes a -2 penalty on Strength and Dexterity and can’t charge or run. Sleeping in light armor does not cause fatigue.
Heres a link to rope trick if you're lazy like... me.
http://www.d20srd.or...s/ropeTrick.htm
Jah, its all core rules man. IIRC, they even comment in the equipment section that fighter's are wise to carry round something like chain shirt to have something to sleep in, cause armor takes a bare minimum minute to fit on.
Also, his knowledge for penalties in light armor could be related to 2e, where it was based on what armor you wore (ANY armor) but differed by the type of armor. (i.e. padded is less penalty than leather, which is less than chainmail, etc) If, of course, I am still sharp on mah rules.
Regardless, sleep and watches are generally something that need not be kept watch of. Unless of course, you have your players [BROWNIES] their pants because they dont say "My character uses the bathroom". You gotta draw the line somewhere, but things that would be common sense to the character(s) is THE place to start.
I'm prepared to passionately argue this point until nothing makes sense anymore!- RM
He who fights alone dies alone, but those who battle as brothers will live forever.
"The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents." --H. P. Lovecraft
Who is to judge what is right and what is wrong? Great and powerful foes surround us; unknown miscreants gnaw at us from within. We are threatened with total annihilation. In days such as these we can afford no luxury of morality.