How to wake up someone properly?

My partner has issues waking up. It is even so bad that a few weeks ago, a roof nearby collapsed and it was such a loud bang and it felt like an earthquake happened, with that the police, ambulances and firefighters came rushing into the street with all the on sounds as well. Obviously everyone was shocked awake and was checking on wth happend.

My partner? He was fast asleep.

I have to wake him up every morning because he just doesn’t hear his alarms and I do. I don’t have many issues with this but sometimes I just wish it was a bit easier.

What can I do to wake him up and have him awake “right away”?