
The latest way to get a good night’s sleep in Japan is, apparently, by drinking water made by Coca Cola.
A lot has been written about Japanese work culture, which encourages long hours, late nights, and bizarre sleeping positions on the train. With the nation’s residents in dire need of some much-needed shut-eye, it comes as little surprise that soft drink conglomerate Coca Cola Japan is now bottling the formula for a good night’s sleep with a new drink called “Glaceau Sleep Water”.
▼ According to the company, the drink is perfect for people who can’t get to sleep at night or for those who experience interrupted sleep. It’s also recommended for people who still feel tired after a full night’s slumber.
The peach-flavoured water is a first for the company, as it’s been enriched with a special ingredient considered important for ensuring a restful night’s sleep: L-Theanine. This amino acid, found naturally in tea, has been shown to decrease anxiety and stress levels, while also aiding relaxation and improving sleep. By increasing sleep quality, even people who can’t fit in eight hours of shut-eye are said to feel more revived the following day.
Unlike cola or tea, this new product contains no caffeine. The water is light and easy to drink before bed, with its maker recommending it be consumed during the evening while relaxing after work, or after one’s nightly bath, which is commonplace in Japan.
Aimed at the sleep-deprived 20- to 40-year-old market, the new drink comes with a brand new marketing campaign, which features three “sleep agents” who aim to support healthy slumber with some tips for getting a good night’s rest. There’s the aromatic candle-lighting agent, who suggests unwinding before bed with some relaxing aromatherapy, the lullaby-singing lady, who recommends listening to some relaxing music before slipping between the sheets, and the man with the muscle-pumping “pillow-arm”, who reminds you to use a proper pillow for resting your head.
▼ The slow-moving pace and restful images in the commercial are enough to send you off to the land of zzz.
But does it really work? We were curious to find out if there’s any truth to all the grand claims being made about the new beverage, so we stopped by our local conbini to pick up a bottle for ourselves. We’ll let you know just how effective the drink actually is once we’ve slipped into our PJs…
Source, images: Coca Cola Japan
Additional images © RocketNews24



We go to bed with Coca-Cola’s new Sleep Water to test its snooze-inducing effects
Coca-Cola Japan are testing “fill your own bottles” water dispensers to help reduce plastic waste
Coca-Cola giving away specialty bottlecaps in Vietnam to promote reusing their plastic bottles
Coca-Cola’s new Coke ON subscription service makes Japanese vending machines more fun to use
Japan set to receive amazing ribbon bow Coca-Cola bottles for Christmas this year【Video】
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
Man in Japan falls into hole with a bear in it
Starbucks Japan opens new Kyoto store in Place of Scenic Beauty
Is Japan’s new pudding ice cream bar too much deliciousness to handle? 【Taste test】
Sushi Push Pops aiming to be Japan’s newest sakura season snack sensation
The top 10 graduation songs in Japan as chosen by current Japanese high school students
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
Godzilla hammer from Japan lets you smash nails like a kaiju
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Starbucks Japan opens new cafe and art gallery in top Tokyo tourist neighbourhood
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
Is Japan’s Crab-shaped Cup Ramen Timer worth the hype?
Pizza Hut Japan teams up with creator of one of the country’s best kinds of ramen for ramen pizza
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Silicone testicle covers banned from Japanese sauna following cups being left behind and on shelves
Japanese government planning higher ticket prices for foreign tourists at Tokyo National Museum
Pikachu and Eevee become handmade Lladró porcelain sculptures to celebrate Pokémon’s 30th birthday
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
What happens if you make instant noodles with Coca-Cola instead of water?