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  • Dress Up for a Night of Fun at Smithsonian’s Halloween Sleepover
people dressed up in costumes at the Smithsonian Halloween sleepover event
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Dress Up for a Night of Fun at Smithsonian’s Halloween Sleepover

Come in costume for an overnight adventure at the National Museum of American History from October 30 to 31.

By Kate Oczypok September 24, 2026 at 7:00 am

Spend a “spook-tacular” evening at Smithsonian’s National Museum of American History with their latest Smithsonian Sleepover celebrating Halloween.

The event kicks off on Friday, October 30, at 7 p.m. and runs until 9 a.m. on October 31, leaving plenty of time for trick-or-treating. According to Brigitte Blachere, Smithsonian Associates Program Manager, candy is passed out in the morning for children to take home. 

The October Smithsonian sleepover welcomes attendees to come in costume. Smithsonian employees also join in the fun. 

two kids pose in front of a Smithsonian Sleepovers sign
Courtesy Smithsonian Associates

Costume Information

“One year, we made our own giant butterfly wings, and everyone had their own unique pair,” Blachere says. “Other times, we have come dressed in the decades and fan favorite objects from the collection. Costumes are usually related to the museum we’re holding the sleepover in that year.” 

Keep in mind, Smithsonian security does have costume guidelines for guests, including: 

  • No wearing masks or other items that obscure the face 
  • No sharp or pointed objects, or materials that may accidentally hit guests or exhibits, or any elements that could resemble an actual weapon 
  • Costumes should be child-friendly 
  • Costumes should not be obstructive, offensive, or violent 
  • Adult guests should not wear first responder costumes to avoid any confusion in the event of an emergency 

“We encourage everyone, including adults, to dress up, and the costumes do not have to relate to the museum,” Blachere says.

kids do a craft at a Smithsonian Sleepovers event
Courtesy Smithsonian Associates

The evening, which is designed for children ages 8 to 14 with an adult chaperone age 21 or older, begins with check-in followed by a mandatory orientation.

After that, there are plans for American Road Trip activities to coincide with the museum’s ongoing In Pursuit of Life, Liberty & Happiness exhibit. The next morning, breakfast will be served and guests should leave the museum by 9 a.m. There should be one adult chaperone for every five children per registered group. 

Feature image courtesy Smithsonian Associates

Kate Oczypok

Kate Oczypok

Contributing Writer

Kate Oczypok has been a freelance writer since 2011, and is proud to be a regular contributor to Northern Virginia Magazine in digital and print since 2020. Her bylines have appeared in The New York Times, People.com, Better Homes and Gardens, and locally The Georgetowner and Washingtonian Magazine, among others. She holds a Bachelor of Arts in Print Journalism from American University and a M.Ed. in Education from Penn State. She also teaches virtual piano lessons in the after school hours and does portrait photography on weekends.

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