Night time potty training

How did others do the night time potty training ?

The restricting fluids in evening and picking kid up for a 'sleep wee' on your way to bed I've heard - the latter won't be a runner for us though as my son would just wake proper up.

Can it be done just by restricting fluids in evening (upside down triangle of fluids?) Son sleeps 12hrs.

The main issue doing so would be he wakes up cranky in the morning and refuses to go potty for a good while after he wakes up until he's less cranky.

He's day trained.