I don't have any experience with pygmy's, but they seem rather small and their enclosures and set ups different.
I do however, have experience with housing a veiled and crested gecko together.
My male veiled (6months) currently shares his enclosure with 2 crested geckos (male and female). Their enclosure is made up of a reptibreeze (18x18x36) that sits on top of a zoo med terrarium (18x18x24). And that sits on top of an already 11in high coffee table.
Anyway, in regards to housing them together and their behavior. I find the geckos almost never find themselves running into Zeke while he sleeps. The female gecko tends to hang out in the pothos up top a lot during the day and the male gecko has his fav sleep spot in the terrarium portion of the enclosure. So they don't ever cross each other if at all. Zeke doesn't even notice Sofi chilling in his pothos. When they are awake and active at night, they will occasionally climb around the reptibreeze walls, but I've never seen them near where Zeke sleeps at all.
Shredder the male crestie is probably the same length as Zeke right now too.
So yea, my personal experience is a rather good one I think. Maybe I just lucked out with some chill and cooperative geckos and Veilds.