Interesting corn snake study I found! If you want to see your snake more during the day, give them climbing opportunities they can rest on (Link to full study in comments) :
The 5 Best Reptiles and Amphibians for Kids | PetMD
Corn Snake - WNC Nature Center
How do Snakes Climb Without Limbs?
Corn snake | Smithsonian's National Zoo
Red Cornsnake – Florida Snake ID Guide
Corn Snakes — Jensen's reptiles
Choosing a Corn Snake | PetPlace.com
Corn Snake Care Sheet: A Simple (But Complete) Guide for Beginners