I'd ask her just to check on his temps. (let her know what they're supposed to be), & on his water bowl (in case it's dumped or in case he takes a dump IN it).
If she's not afraid of him, it would be nice if she removed stool if there is any: easiest way is with a plastic bag over her hand, pick up & invert the bag over
the mess & dispose...easy! But...some snakes will nail a warm & moving target, even if it's wearing a plastic bagso tell her to put something like a flat piece*
of cardboard in front of where the snake is when she does this, so he's not able to see her invading his space, & therefore won't strike (scaring them both!).
*I'd leave such a thing near the cage, actually. You always want to be on good terms with your "babysitter", lol.
Honestly, it wouldn't be a big risk for a week if NO one checked on your snake, but since you have someone, that's the better way.![]()