Everything you need, and more
The pictures don't describe. It's an amazing situation to be on the deck, a couple of feet above ground in a comfortable, immaculately clean, and sturdy tent. I left the tent flaps open all night to look out to the orchard and sky, and never felt cold under all the blankets, though it got down into the low 40's. Owls hooted in the woods and coyotes called from the hills.
The outdoor kitchen under a grove of gnarled old apple and pear trees was a pleasure to cook in. To have dinner and wine with a book under those old trees is a memory I will savor.
Prosaically: Good Wifi, a hot shower, cooking utensils, and more than adequate bedding. Bring a lantern. Leave the sleeping bag, mat, stove and mess kit.