Final answer:
Hana might have been awakened out of stage 1 sleep, the transitional phase between wakefulness and sleep.
Step-by-step explanation:
Hana might have been awakened out of stage 1 sleep. Stage 1 sleep is the transitional phase that occurs between wakefulness and sleep. During this stage, individuals are very relaxed but still awake. It is relatively easy to wake someone from stage 1 sleep, and people often deny that they were sleeping if they are awakened during this stage.