OUCH! Back when I was commuting to reserve, I was able to beg a domicile layover out of them a few times, not for the 5hr. break, but for an overnight when we'd get rerouted and unexpectedly stuck in ATL to continue the next day.

Just be nice when you ask Crew Accomodations, see if they've got any empty rooms, and try to sound like you are crying, just a little bit, that always helped me...

If all else fails, try to score a clean white blanket and head for the black chairs! If it's too loud in A, head for E. But bring earplugs, those INT guys snore really loudly!

You may have to go over to the F/A lounge to find the blankets!