2018 Heartland Sundance 289TS, 2018 Heartland Sundance 289TS, 2018 Sundance SS Fifth Wheel Series 289TS W/ Trailer Brakes and Huge Bathroom! The 2018 SS Sundance 289TS is perfect for family adventures. This model comfortably sleeps four with a queen bed and a sofa sleeper. The spacious interior features a dining table with chairs, a kitchen island, and a well-equipped kitchen with a double sink, microwave, oven, and 3-burner stove. The kitchen also boasts a stylish backsplash. Enjoy a large bathroom with a glass-door shower. Stay cool with the 13,500 BTU air conditioner. Entertainment is provided by a TV, DVD player, stereo system with Bluetooth, and both interior and exterior speakers. The exterior includes an emergency exit, an outdoor shower, and a front power jack with a manual in the back for easy setup.