Sir Clarence, I was not aware of your house rule, but my comment was not directed at you. I was speaking in general terms, as this is something I do feel about the game. When playing Eye of the Beholder, in some parts, I would rest for 2 consecutive days after a single encounter
In my opinion, the way the rules are thought are still very much influenced (until 3.x) by the initial feeling of the game, in OD&D. Particularly in the basic game, the premise seemed to be 'you take a saturday afternoon out with your friends, and instead of taking the cows to graze in the fields or going to the fair in the nearest village, you go look that hole in the ground where strange noises come from. You return before dark, and so your whole adventure lasts less than a day, so all your powers are measured that way'.
I am convinced that the game drastically outgrew this concept, but some of the basic rules didn't.
As for your house rule, 6 hours is pretty reasonable, but what I mean is that we should feels it's alright to rest 6 hours after each 1 or 2 if the dangers faced meanwhile are severe.