That would be much more concerning if it was during all hours of the day and/or the snake seems restless rather than just naturally inquisitive.

Serket is definitely my more active girl, and she likes to come out and explore all around her tub at dark hour, but then she'll pick a side and settle in. Strudel is less so, she usually just pokes her head out of her hide and observes things for a bit before deciding if she wants to change sides or not. They're both usually done with evening actives by the time I go to bed (around 11) so their activity cycles are more crepuscular than nocturnal, but this seems to vary from snake to snake. Never see a peep from them during the day unless I pull them out (which I try to avoid after 10 or 11am so they can have the day to sleep undisturbed).