Trundle BedsCityTrundle Beds Trundle BedsdwellersTrundle Beds are often pressed for space especially those living in apartments. To tackle this space conundrum, designer Ryan Mather has conceptualized the Life Fitness Treadmill. This trendy piece of fitness equipment has a space saving design and one can fold it when not burning some calories. The sleek and compact treadmill is also equipped with a LED lighting system that emits light in colors like blue, yellow, green and red. When folded, the treadmill projects ambient light and even doubles up as a mirror. The lights are powered by the energy harnessed during workouts to adhere to the “design with a conscious” principle.