# Penguins + Pajamas Family Sleepover at the California Academy of Sciences > Event for families in the San Francisco–Oakland–Fremont area (CA). Times are Pacific Time. - When: Jan 15 – Jan 16 · 6:00 PM – 8:00 AM - Where: California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118 - Ages: Sleepovers are for kids ages 4–17 with adults 18+ - Price: Adults and children: $136; Members: $122 - Organizer: California Academy of Sciences - Official page: https://tickets.calacademy.org/sleepover - Last checked: Sat, Oct 24 Source: Grassy Knees is a directory of real family events, places and programs for kids across major U.S. metro areas, where every listing is researched from the organizer’s own page and shows the date we last checked it. https://grassyknees.com covers 32 metro areas as of Oct 24, 2026, with more added regularly. About: https://grassyknees.com/about Freshness: listings are re-checked on a daily research run (latest check 2026-10-24), and new events are added as organizers post them. Sell-outs, weather cancellations and time changes show up on the live page first: https://grassyknees.com/san-francisco/activities/penguins-pajamas-family-sleepover-at-the-california-academy-of-science--listing-9956d8443c2ce7131561a242 ## About At a Penguins+Pajamas Sleepover, children aged 4 to 17 and their adults spend the night inside the California Academy of Sciences. From 6 PM, families explore the exhibits after hours, with the Osher Rainforest open until 8 PM. They watch a private show in Morrison Planetarium and have late-night milk and cookies before unrolling sleeping bags in an exhibit area, perhaps beside the aquarium tanks or near the penguins. The ticket covers the overnight stay, special activities, a morning breakfast snack with coffee or tea for adults, secure overnight parking in the Music Concourse Garage, and admission to the museum the next day. Bring pajamas, sleeping gear and a stuffed animal. Every adult must sign an online waiver in advance. Children must come with an adult, and adults cannot attend without children. The Academy says sleepovers fill up far in advance. ## Similar picks in San Francisco - [California Academy of Sciences](https://grassyknees.com/san-francisco/activities/california-academy-of-sciences--listing-d38632a54c9daaaf67c107a0) — Monday–Saturday 9:30 a.m.–5 p.m.; Sunday 11 a.m.–5 p.m.; closed for a private event on… · California Academy of Sciences · From $39 · checked Oct 13. The California Academy of Sciences in Golden Gate Park combines an aquarium, planetarium, rainforest and natural history museum under one living roof. 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