Each time your cat bothers you, give him a quick squirt with a water sprayer that is kept on the bedside table. Use only plain water in the squirter. After only a couple of squirts, your cat will get the idea. If he is meowing outside the bedroom door, first reach for the water sprayer, quietly get out of bed and creep towards the door, then suddenly fling the door open, squirt the cat and then immediately shut the door. Try to stay alert for five minutes, waiting by the door with the water sprayer ready in case of a second attack.
Some cats actually enjoy being squirted in the face with water.
If this is your cat, then obviously it's silly to use a squirt bottle. Try to think of something the cat doesn't like, such as a loud noise or a blast from a cannister of compressed air used to dust of camera lenses. Often just the sound of the hissing air sends the cat fleeing. If you think you can use the sneak attack portion of training without providing your cat with an alternative outlet for his activity needs, you're in for a big, unpleasant surprise. Your cat will become frustrated and maybe even angry.