Mine were "trained" about bedroom behaviour quite simply: if they are quiet and still they can stay on the bed. The minute they start bouncing, they get the boot! - I just push them gently off the bed with whichever hand or foot is nearest. And no toys in the bedroom - I have a laminate floor and can't cope with little claws skittering around at 2 am!
They soon learned
In nearly 12 years, still haven't managed to persuade Jenny that the pillow is OFF LIMITS though - always have to move her before she settles for the night.
What is cute in a kitten can get a bit boring or even painful in an adult cat. My girls are spoiled in some ways - but well-disciplined in others: they don't make a habit of begging for food off my plate (they do occasionally, but I *never* give in). Start as you mean to go on and be consistent - even if it does feel a bit hard-hearted, you'll get far more pleasure out of your babies in the long run.