Pet mice are small, agile, and love to explore, but they also need a secure, well-ventilated space to play safely outside their main cage. A playpen designed for mice must have narrow bar spacing to prevent escapes and be made of chew-proof materials since mice are notorious gnawers. Our editorial team researched the best playpens that balance safety, portability, and ease of cleaning for your tiny companion.

When choosing a playpen for your mouse, consider the height (mice can jump surprisingly high), the floor space for running and exploring, and the ease of setup. We looked for pens that are easy to assemble, collapse for storage, and have no sharp edges or gaps that could trap a mouse. Below are our top picks based on these criteria.