At least he did, and Obi-Wan wasn't going to push him to drink it all. If he didn't like it that was up to him. Can't win them all. Taking the cups, he watched silently as Ren tried closing his eyes in an effort to sleep... only to jerk them open again.

Well... looks like he needed more than just a bit of tea.

Setting the cups aside, the Jedi bent down and placed his hand on Ren's shoulder.

"Just relax, Ben. Let me help you."

Kylo would probably recognize that Obi-Wan was using the Force to try and calm him. He could resist if he really wanted to, but if he didn't... he would find himself being lulled into a deep dreamless sleep.