Timber Hideaways from Penn Plax www.amazon.com - $5.99 (medium) Product Description: A simple design that your small pet is sure to love. Timber Hideaways are 100% natural wood grown from sustainable sources. Place one in your small pet's habitat to offer the sheltered hiding place your small pet naturally seeks. RattyRat's Review: This product makes a nice little sleeping den and it's fairly cheap. The only problem we have with it is that it is wood, which is harder to clean.