Well, I pretty much ran out of time trying to make it look nice, so here's what I got:
When an alarm clock rings - it crawls down the table (from vibration) and falls into a bucket.
The bucket pulls the rope, which in turn pulls the trigger of a crossbow.
The crossbow releases the arrow, which hits the target.
The target falls, hitting the scissors.
The scissors cut the rope, and a trapdoor falls, releasing the ball on the shelf.
The ball rolls down the shelf and falls on another target, which serves as a lever to the gas bottle.
The gas ignites, boiling the kettle.
By the time you get out of bed your coffee is piping hot!
Once again, I ran out of time, so don't look for nice shadows and stuff )))
PS: used a lot of sources, just for the fun of it. Gas bottle photo is from my backyard. (5 years and 2241 days ago)