By the way, I mentioned using the skid-proof carpet mat on top of the "giant hide" for my boa: before I made that hide, she had a really big black plastic hide, but it was slippery for her to climb on top of- so basically, that space went to waste- & plus, the hide also could be pushed around (lighter weight- plastic- and also didn't completely fit the space), so it didn't have much stability.
But once I re-did her home, her activity increased dramatically, & I know it's because she had traction & stability- she moved with confidence- it made a huge difference. She could get on & off the top of her new 'hide' without slipping, & like I said, the double doorway was a "hit" too for a big snake like she was. She acted like "Hey, what's this? I couldn't DO this before." and she was all over it.It was so much fun to watch her.