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Deep Sleep Planetarium

Deep Sleep Planetarium

◇ When

November 22–23, 2026

Sunday – Monday

⌖ Where · Adachi

Galaxcity Maruchi Taiken Dome

1-3-1 Kurihara, Adachi-ku, Tokyo

ギャラクシティ まるちたいけんドーム
東京都 足立区 足立区栗原1-3-1

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For those looking to relax and unwind, this event offers a special 'sleeping space' inside the immersive dome. You're welcome to bring your own pillow or blanket. There are no audio guides or constellation explanations—just calmness. Participants who manage to fall asleep will receive a 'Deep Sleep Certificate'; those who stay awake the whole time get an 'All-Nighter Certificate.' Open to everyone (preschoolers must be accompanied by an adult). Capacity is 80 people, with 2 wheelchair spots (no platform seating). Tickets are sold on a first-come, first-served basis from 9:00 am at the Galaxy City first-floor reception desk on the day of the event.
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