NEW YORK (CBSNewYork/AP) – The American Museum of Natural History will have its first-ever sleepover adventure for adults 21 years old and up on Aug. 1.

The sold-out event is a far cry from the kiddie version.

For one thing, it costs $325 for museum members and $375 for non-members.

A champagne reception, music and a 3-course dinner are on tap.

Then it’s off to explore the museum’s enormous dinosaur skeletons and African mammals. There’s also flashlight tour of the darkened fossil halls.

Participants will unroll their sleeping bags under the popular 94-foot-long blue whale.

The nocturnal adventure will run from 6:30 p.m. to 9 a.m.

For more information, click here.

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