This Halloween season, Insomnia Cookies is offering a special treat for customers in costume. From October 28 to November 3, 2024, anyone wearing a Halloween costume can stop by any Insomnia Cookies location to receive one free Classic cookie. This offer is valid through 3 a.m. PST on November 4, with no purchase required.
The promotion applies only to Classic cookie flavors, excluding limited-time offerings. Customers must wear a visible Halloween costume to redeem their cookie, and each customer can participate once per day throughout the promotional period.