A ceramic tunnel or hideout gives a hamster a naturally cool, secure place to burrow, hide and sleep, and unlike wood it does not absorb odours and wipes clean easily. The best are the right size, breathe well, and stay stable in deep bedding. Ceramic stays cool, which is welcome in warm weather. We compared ceramic hamster tunnels and hideouts on size, cooling and cleaning, so your hamster has a cool, safe retreat.