Brand: Big Agnes. Product Style: Big Agnes Mad House 4 Tent - S13. The Mad House is exactly what it sounds like, a place for mountain madness to ensue. Be that singing with your kids if it's raining or hosting a gaggle of buddies to a late night jam session. Designed to be larger at the top than the bottom, there is a spacious feeling inside this tent. With double doors and an all-weather fly with double vestibules that go all the way to the ground the Mad House is a great choice for a car or base camp tent; bring the party!