Why did Apple choose nine minutes as the default time delay for the snooze button? - Quora
Projection Alarm Clock for Bedroom, 5-Level Dimmer&Volume, 7" Large Screen, 9 Minutes Snooze, Battery Backup Setting, 180° Ceiling Digital Alarm Clock for Kids, Senior, Heavy Sleepers : Amazon.ca: Home
9 minute countdown timer with alarm - YouTube
Set timer for 9 minutes 👍
So THAT'S Why Your Alarm Snoozes For 9 Minutes | HuffPost Life
9 Minute Timer with Alarm, without music - YouTube
45 Seconds, 45 Minutes or 9 Hours - Alarm Clock Icon Green and Black Stock Illustration - Illustration of short, nine: 195343271
9 Minute Timer Countdown - Colorful - YouTube
How the snooze button got set to 9 minutes, and why it hasn't changed | Mashable