In the short time that Teddy had been alone in the Gryffindor common room, he had collected every unused blanket and sheet that he could get his hands on. Furniture had been moved. Cushions had been collected as well. The blankets and sheets had been charmed together and then to the ceiling, stretched out and enlarged with even more charms to make a proper tent that went over the furniture and made plenty of space for multiple people. The cushions had also been enlarged to make almost mattresses to pad the ground. Every light source he could find that wasn't attached to something was charmed to float loosely around the 'tent', creating a gentle flowing glow.
Teddy had kept himself awake by singing under his breath softly, the switch in languages making him think so he wouldn't just conk out. And he stopped almost immediately when he heard footsteps, a voice. "C'mon in, the cushions are fine."