Sorry about the last panel. I couldn't tell if Keine said she put the bugs there to wake up Mokou, or if she put them there to use Mokou's screams as an alarm clock for herself.

No reason to assume the latter. Mokou's reply also wouldn't make much sense if that were the case.

That's as far as the actual dialog is concerned, of course. Chances are she actually did intend the latter.

Wasn't there a comic involving "Wriggle Notification System?"