Why not pump and do the
5x5x3 at night before bedtime? That way you’ll have a full and heavy hang through the night accompanied by multiple raging boners while you sleep.
It’s what I do myself and personally I would never wear something on my Johnson while sleeping, way too risky. But hey to each his own, experimentation is also needed in this game we call PE.
Anyhow, best of luck on your further PE journey brother. And please try to keep us all updated on how it goes.