@RoyalChick
This sounds reasonable. I think they go where they want to / need to go. The chickens here, I think Peanut and Butters both found the chopped hemp in the nest box warmer and more comfortable. Hazel when she was moulting slept there a lot too, and she didn't have a hard molt.
The Spuds, for awhile they all were hiding in the nest box and they wanted to be together, like when they were chicks they always slept next to each other. They would run Popcorn's pecking gauntlet getting into the coop and scramble back there away from her. Hazel would be in there too and they would all crowd in. Now Hazel is usually on the roost platform most nights and it seems only one Spud is in the nest box pretty regularly and the other two are out with Hazel. Popcorn tends to perch on the divider between the areas, then move to the platform too.
I found a kitty litter scoop that has bigger slots and works pretty well in sifting the chopped hemp. So it's not too big a deal to clean the nest box out.