An unprecedented sleep showdown testing just how comfortable a Koala mattress really is — “Mattrace by Koala” — is coming to SHARE GREEN MINAMI AOYAMA in Tokyo on Monday, October 5, 2026!
The grand prize is a jaw-dropping ¥2.22 million, and entry is completely free 😲
Applications are open from Friday, September 4 through Wednesday, September 16, 2026, with participants chosen by lottery 🛌
📖 What’s In This Article 📖
☝️”Mattrace by Koala” takes place at SHARE GREEN MINAMI AOYAMA on Monday, October 5, 2026 — free to enter
✌️A ¥2.22 million grand prize! Competitors are scored on “depth, quality, time to fall asleep, and stability” during a 90-minute sleep-tracking battle
🤟Applications run September 4 (Fri) – 16 (Wed), 2026, until 11:59 PM — open to ages 20+, selected by lottery
[October 5, 2026] “Mattrace by Koala” Set for Minami-Aoyama 🛌
Presented by Koala JP K.K., “Mattrace by Koala” is an unprecedented sleep-battle event coming to SHARE GREEN MINAMI AOYAMA in Minami-Aoyama, Tokyo! 🌱
The event is produced by popular creator and event producer afromance, founder of Afro&Co.
It’s happening on Monday, October 5, 2026, with three separate races running between 12:00 PM and 8:00 PM. Entry is free, so if you’re intrigued, go ahead and apply ✨
A ¥2.22 Million Grand Prize! A Real Sleep-Tracking Battle 💤
Every competitor wears a sleep-tracking device and takes on a 90-minute challenge lying on a Koala mattress 💪
Sleep “depth and quality,” “time to fall asleep,” and “stability” are all scored using a proprietary system developed under medical supervision — it’s a surprisingly serious setup!
The grand prize is a whopping ¥2.22 million! There are also quirky special awards up for grabs, like the “Deep Sleep Dive Award” and the “Acrobatic Tossing-and-Turning Award” 😳
3 Signature Twists: Sleep Warm-Up Exercises, Sleep Items, and Sleep Sabotage
To make things even more entertaining, the event includes “sleep warm-up exercises” to help competitors drift off, “sleep items” handed out that can influence the outcome, and sudden bouts of “sleep sabotage” during the competition!
This is clearly more than just a napping contest — expect plenty of laughs and tension packed into one highly entertaining event 🎪
How to Apply & Event Details — Access Info for Minami-Aoyama 📝
Applications are open from 10:00 AM on Friday, September 4 through 11:59 PM on Wednesday, September 16, 2026 ⌛
Open to applicants aged 20 and up, with around 20 spots per race awarded by lottery!
You can apply through the entry form on the official “Mattrace by Koala” website!
Official Site: https://mattrace.jp
There are three time slots: Race 1 from 12:00–2:00 PM (check-in 10:45–11:00 AM), Race 2 from 2:30–4:30 PM (check-in 1:15–1:30 PM), and Race 3 from 5:00–7:00 PM (check-in 3:45–4:00 PM).
Pick whichever time slot works best for you and apply 🕐
| Organizer | Koala JP K.K. |
| Produced by | afromance (Afro&Co.) |
| Venue | SHARE GREEN MINAMI AOYAMA (1-12-32 Minami-Aoyama, Minato-ku, Tokyo) |
| Date | Monday, October 5, 2026, 12:00 PM–8:00 PM (3 races) |
| Entry Fee | Free |
| Application Period | September 4 (Fri), 10:00 AM – September 16 (Wed), 2026, 11:59 PM |
| Eligibility | Ages 20+; approx. 20 spots per race (lottery) |
| Grand Prize | ¥2.22 million |
Since it’s a lottery, applying costs nothing — if you’re a great sleeper, this could be your moment! I’m secretly thinking about entering myself 💤
🌈 In Summary 🌈
✅ “Mattrace by Koala” takes place at SHARE GREEN MINAMI AOYAMA on Monday, October 5, 2026 — free to enter
✅ A ¥2.22 million grand prize! A genuine sleep-tracking competition judging “depth, quality, time to fall asleep, and stability”
✅ Applications run September 4 (Fri) – 16 (Wed), 2026, until 11:59 PM — open to ages 20+, selected by lottery
🔗 Source: Koala JP K.K. press release (PR TIMES)
© Koala JP K.K. / Afro&Co.
A ¥2.22 million prize just for sleeping?! The scale of this is unreal…! And with actual “sleep sabotage” thrown into the mix, this competition sounds way more serious than I expected 👀