Sam got himself dead, and got to occupy a morgue table until around 5 or 6am Sunday, when he popped back awake. Unfortunately for him, he only gets to 'heal' his fatalities, so he's still got a potload of cuts and bruises and a broken arm (left). Woo, he and Paige can match! He got kept in the hospital in DC for a few more hours after, for observation just in case, then got shipped home with the family around mid day.
Despite the desire for family solidarity he didn't sleep at 'home' with everyone else, b/c he doesn't really feel inclined to give his sibs a front row seat to the nightmares he expects to make a reappearance post revisiting the lovely experience of dying buried in rubble. Not to mention the whole claustrophobia and fear of the dark thing that he's got a pretty good handle on in the familiarity of his room....
Daytime he's probably splitting between hanging with any family who wants the company and sitting around at the hospital (probably with Bobby?) waiting on Kitty to become coherent.