With what FR said about them liking to feel secure, even with some of the small basic hides I have seen these still not being enough.

Something I have found better to producing a secure and snug hide is home-made hides using wood or rocks that are structurally secure that allow snakes to really get down into a snug spot. With some I will add some plant cover over a few spots to make the entrances to the self-made hides less visible so that the snake does not still feel exposed.

Sometimes it takes a bit of trying to get home-made hides designed "right" based on keeper tastes and simply durability, but they can be better than store-purchased hides if you put some thought into how to make it and where/how to position it.

I have seen a few easy ones to make. There is another post a few posts down where FR posted a pic of his son's hognose hide, and then another one I have seen is a board with a wooden block about the width of a 50 cent coin to prop it up with some plastic decor plants draped over the openings.