New tank width

Great looking set up/idea but is it hard to keep it clean with the burrow system or to early to tell?
Do they use it to sleep when lights out?
Lia

I've had this system for over two years now and both my uros use it regularly. If they're feeling skiddish, they hang around the entrance and bolt if they need to. Every night, they stroll in and go to sleep. Ditto with brumation.