Mikey has apnea so sometimes when he manages to get into a good, deep sleep, he has a lot of trouble rousing himself from it.
So, it's rather tempting to suggest the introduction of this handy device...
Idiot-proof wake-up alarm

... the Screaming Meanie is not a clock. It is a countdown timer. You set the number of hours and minutes between now and the time you want to wake up. You can also set the volume, either to "loud" or "frighteningly loud." In case 110 decibels is not enough ("loud enough to wake the dead!"), they have a 220 decibel version too!
When you start the Screaming Meanie the alarm is ON by default. This eliminates my habit of waking up five or six times just to check whether I set my travel alarm correctly. You just know this thing is going to work. You can't possibly sleep through it because while the 10 and 5-minute warnings can be turned off with one button, it takes 3 buttons pushed simultaneously to silence the final alarm.
Tempting.
But Mikey just went through extensive effort and expense to rid himself of his last Screaming Meanie, so it probably wouldn't be a popular suggestion ;)