Hides for sure: one un-heated, one on the warm side, and also a "humid hide" is appreciated (somewhere between the warm & cool ones, filled with damp moss-
& you want an enclosed bottom for this or the damp moss will dampen the other substrate as well, so cutting a doorway in the top of a clean food container with
a snap on lid works great for a humid hide- re-dampen the moss periodically when it dries out.)
Snakes enjoy driftwood or tunnels of various kinds- just make sure to plug (permanently) any holes they might get stuck in (as they grow, or after eating, etc).