Setsuna cracked open an eye when she heard a noise and her hand went underneath her pillow. When she saw it was only Felice getting up, she relaxed and her hand went back under the covers.
She was awake for a while but she didn't like getting out of bed, so she always stayed awake for at least an hour under the covers. How she could sleep with her daggers poking her under her pillow has always been a mystery.
She closed her eyes and tried to fall asleep again, although unsuccessful because of Mayu's snoring.