"Ah..." He thinks about it, gnawing at the inside of his cheek, but he's pretty sure it should be okay. They're webs of static reality, and they might be material but they still feel strongly to him as if they're intended to ensnare people who manipulate reality, whether that's through magic or something else. A Sleeper shouldn't be affected because they already exist within the parameters of that reality. And it would be nice to know if Sleepers can touch them, in case there are more. "Yes, try."

Anyway he figures if something happens he can just try ... something. Anything. He still hasn't even begun testing the limits of what he can do.