Np. Yeah it seems that captive toads tend to be weird on when they want to burrow and hibernate. Yours probably do come out at night and eat the roaches, I know that my spadefoot toad comes out on some nights and other times I don't see it for weeks on end. For my other toads its the opposite for me, my male toads want to burrow deeper into the subtrate and the females just half burrow at the top.