We all wake up after each dreaming cycle which is around 90-100 minutes long. Most of those times you won't remember but if you need to pee you will wake up "for real", if you have the intentions of realising that you're waking up it's the same thing. It's good for recall, but if you want undisturbed sleep try not to wake up, it's not often I don't wake up atleast once a night and the nights I go to bed and wake up when my alarm sounds are very rare and a blessing.