Best way to make your own moist hide

[The Serpent Merchant]

I'm doing that as of now with the moss, but the moss seems to start drying up really quick within a couple of days or so.

A specific humid hide (plastic container with hole cut on top) will probably hold humidy a lot better and longer, but I don't have a lot of room right now until I get a new cage (48Lx24Wx12H divided into 24x24 until he's bigger).

My only concern is that the snake will constantly choose the humid hide for the humidity, regardless of temperature.

Once I get my cage I was thinking of having 4 hides.
2 hot side hides - 1 humid with moss , 1 not
2 cool side hides - 1 humid with moss, 1 not

.. But will they constantly use the humid ones and make the non- humid hides useless?

Does anyone think this is unnecessary and overkill.

unless your humidity is extremely low (less than 30%) I would only put a humid hide inside the tank during shed. if your snake decides to lay in a humid hide 24/7 you will likely have issues with scale rot.