They'd let him have a book, but that was all that was allowed as comforts went. He had no idea if he could change to Wormtail, and hadn't tried. Not with the Aurors and Hit Wizards around. He'd been questioned again and again, and towards the end he'd just wanted to lay his head down and go to sleep.
However, he'd found sleep in the cell to be fleeting at best, and he was exhausted by the time Tuesday--at least he'd thought it was Tuesday--came around. He wanted nothing more than to transform and curl up as Wormtail. He could finally get some rest then, and order his thoughts. He wouldn't though, not as long as he was being monitored. That was private.
He wasn't surprised when Dumbledore showed up, just resigned. "Decided to send in the big guns, did they?" He didn't bother to get up from the cot, just drew his knees further up under his chin and wrapped his arms tightly around them. "I don't know what else I can tell you that I haven't been over a dozen time with the Aurors."