Kurt checked in on Creed a few times a day, finding him unconscious whenever he entered the brig. Since he was not a doctor, Kurt couldn't comment on his healing process other than superficially, there were more competent people for this task around. However, Creed would definitely want to talk to someone once he was awake, if only to voice his rage over of how he had been treated. And they still needed information from him, too.
Though how we could make him share them without succumbing to mindprobing via Psylocke is anyone's guess. He doubted Creed was in the best mood, but Kurt hated the idea of doing more thing against Sabretooth's explicit will. They were not exactly stellar hosts to begin with.
The teleporter was quite sure Creed would take at least another night to come around, seeing how severe his injuries were. So when he returned that evening, barefoot like usual, in a black pullover and pants, looking about ready to go to bed, he didn't even really turn around to him at first. Automatically, he went to the control panel and checked the dials, making sure the force field was still strong and holding Creed securely prisoner. Then, he turned to look at the mutant.
It was impossible to see his face, since his wild mane covered it, but he had changed position a lot since the last time. Kurt approached, curiously.