And that just about wraps things up for tonight - thanks for looking in as Andrea Pirlo wins his first trophy as Juventus manager.
Wojciech Szczesny made a brilliant save in the first half to deny Andrea Petagna's header, but Juve were the better side afterwards.
Cristiano Ronaldo scored his 32nd goal in 32 games with a hooked volley from close range to put Juve ahead.
But Napoli had a chance to level late on when Lorenzo Insigne stepped up to take a penalty - only to roll it wide. Szczesny made another great save in injury time, seconds before Morata's clincher.
Juve win the Super Cup for the ninth time. They were the better side overall, but Napoli had their chances.
Cuadrado races clear, then finds Morata, who rolls it in from close range!
Wojciech Szczesny sticks out his left leg to deflect the ball away after a scuffed shot from Politano. Superb stop!
Ospina comes a long way out to take the ball off Cuadrado's head with his foot, and then dribbles towards halfway!
Five minutes have been added on, giving Napoli a shade of a chance.
Ospina bravely blocks Ronaldo at close range as we enter injury time.
Piotr Zielinski kicks out in frustration and sees yellow. It gives Juve a chance to go to the corner and eat away at the clock.
Juve are still pressing, Napoli are struggling to make any impression as we run out of time.
Rabiot and Morata for Betancur and Kulusevski as Juve look to shore things up.
Mario Rui makes way for Politano for Napoli.
It's not like Insigne could say the crowd put him off, is it? That was pressure of the moment playing its part.
Insigne misses the target!
He pulls the ball to the right of the goal while Szczesny dives the other way! Really poor from the Napoli player.
Penalty to Napoli!
Hang on - McKennie seems to clip Mertens in the box as he tries to clear - the referee is going to the screen...
In a boxing sense, Juve keep jabbing away with bodyshots that sap the strength, while Napoli are flailing away and not landing a glove.
CR7 blots his copybook, catching Giovanni Di Lorenzo high on the body and earning the first booking of the night.
Mertens replaces Petagna for Napoli.
Napoli are looking to bring on Dries Mertens, but Juve are pressing for a second, with Cuadrado's low cross from the right cut out by Koulibaly for a corner.
It had felt like only one side were going to score before that goal - now, have Napoli got what it takes to get back into this? They will have to make a big improvement on the last 30 minutes or so.