For Sienna's 13th birthday, this stylish young lady invited 20 of her friends over for an epic girls' night under the stars.

Parties A' La Carte [1] transformed Sienna's Florida backyard into "Camp Sienna," and the birthday girl welcomed guests to her glamping retreat complete with elegant tepees. For the mature celebration, gold chiavari chairs surrounded a grand feasting table with mint linens and forest-inspired floral arrangements. Mason jar glasses, customized with each girl's name, doubled as a place card and favor.

Just beyond the table, tents were arranged for an outdoor movie night complete with a full snack bar and custom s'mores kits. The girls slept in their new pajama favors and awoke to packaged boxes of minidoughnuts and glass bottles filled with milk. What a way to spend her first night as a teenager!