Double Fitness Mat can be purchased at the following shop:
Double Fitness Mat can be interacted with when the player's spouse is nearby. Using the Mat will cause the builder and their spouse to take the wheelbarrow squat yoga position, with the builder on the bottom.
Using the Double Fitness Mat will give the player a +5% Attack buff for 360 seconds. Only one of the spouse furniture buffs (Double Fitness Mat, Double Lounge Chair, Double Rocking Chair, or Merry Go Around) can be active at a time.