This is a great feature if you want to be re-notified of a high or low that is not changing. For example, if you are alerted of a high before going to bed and you continue to stay above your high alert through the night despite making a correction, the snooze feature will alert you at the amount of time you set it for that you still have a high sensor reading. If you do not have the Snooze feature set up, it is possible that you could sleep through the night with a high glucose reading.