Regrets on sand in run?

[ChickyCh00k]

They’re 12 weeks old. They roost everywhere during the day. Just not at night. I can’t even get in the coop to try and put them on the bars at night because they’re huddled up against an in-swing screen door. I’m hoping they just need to mature a bit.

That's pretty young still. As they get larger/older, their desire to do the "pile" should decrease, and the instinct to roost higher and off the floor should kick in!

 

[OnlySympathy]

I can’t even get in the coop to try and put them on the bars at night because they’re huddled up against an in-swing screen door.

Open it anyway. They will move and then just pick them up and plop them on the roost. As dumb as they want you to think they are they will learn to not sleep by the door in a matter of days and to roost within a week or two at most.