If I wake up in the middle of the night and get up from the bed, should I reset the alarm?

There is no need to reset the alarm if you get out of bed for a short while during the night. The Simba Sleep Coach will not detect movement if you are not there, so keep this in mind when reading your graph in the morning. To prevent this, you can take the phone with you if you leave the room, this way the app will know that you are awake.