Overview: Mario, Autumn and their four children give Tiny Heirloom a big challenge for their dream vacation tiny home. With just 220-square-feet of living space, this family needs to have enough room to sleep all six, while still having a place for luxury items such as a decorative fireplace and large bathroom with two sinks. Tyson and the guys maximize space with two sleeping lofts and a downstairs bedroom with bunk beds, while Michelle and the design team bring Mario and Autumn's rustic and log cabin tastes to life.