Trust no one, especially not your half-sleepy self!
Tip #5: Always have a backup alarm
Whether that’s having two alarm clocks or setting multiple alarms, always have a fail-proof. I personally use 3 different alarms. One is my radio-clock which I let run in the background to wake me up. I then have an alarm on my phone that I set to when I want to wake up. It’s usually several minutes after the first.
Then I have a second alarm set at the latest possible time as a backup, in case my previous two alarms have failed me. I cross cover with my phone and a traditional alarm, so even with powerouts or if I forget to plug my phone in or it’s on vibrate, I will wake up.
Of course, this often backfires and I forget to turn off all my alarms when I want to sleep in on a weekend.