you can rest, Not sleep.
Oh well, regardless, ur pretty fucked, Next time make sure you have an emergancy BluePotion, it recovers Stamina.
you fell to a rat... thats another problem, i suggest getting good first xD
ur probably new so i let me remind you this is a cruel game, if you got stuck in such situation then use the KYAAAH!!! Action button, set it in the skills menu and use it, this will skip the "Getting your ass beaten" and sets your stamina to -100, causing lona to faint, Use this only if your enemy wont kill/eat/rape you, i think rats will let you live if you faint... Not sure.