
We’ve seen some crazy things from Japan, but this is the first time we’ve ever seen a blanket dressed up as a school uniform.
Bibi Lab, the Japanese retailer known for bringing out crazy items like the Cotton Wife, the rolling umbrella and the twintails pillow, has been making news recently for their Sera Kore (“Sailor Collection”) line of uniform-style sweat suits. Bibi Lab first ventured into the realm of sailor-style roomwear for the home with a fleecy men’s version released last year. Following its huge success, the company released a lineup of Sera Kore spring and winter designs, and now as we get into the depths of winter, they’ve come up with an even cosier solution to keep the indoor school uniform trend alive until spring.
▼ Say hello to the “Sera Kore Wearable Blanket Type Sailor Uniform Pyjamas”.
Now that we’re all used to the idea of a fleecy school uniform, thanks to Bibi Lab’s previous roomwear collections, the company is now giving us a wearable blanket that looks like a sailor uniform. Despite the “pyjama” classification, this roomy outfit is designed to keep the wearer warm while lounging around at home.
The long, flared skirt style makes it easy to walk around the house, and even twirl around in like a schoolgirl if you want to, but the design really comes into its own when worn in a seated position.
According to the makers, this is when it becomes a “Self Kotatsu”, meaning it traps heat around the legs in the same way as a kotatsu, which is a low, blanketed table equipped with a heater underneath.
And because the outfit doubles as pyjamas, you won’t have to worry about getting changed and exposing your skin to the cold before bedtime. Although it might feel strange at first to drift off to sleep while wearing a Japanese-style uniform.
▼ We wonder if Japanese schoolgirls wish they could wear this at school instead of their own uniforms, to help cope with those freezing classrooms.
The thick fleece material extends to the sailor-style collar, which means people around you can use the outfit to keep their hands warm too!
The wearable blanket is currently available to purchase from online retailers like Amazon Japan, Rakuten and Village Vanguard, where it’s sold in one size and has a recommended retail price of 9,720 yen (US$85.66). With so many weird yet wonderful features, we’re sure this is going to be another popular hit for the Bibi Lab team!
Source, images: Bibi Lab








School bag cushions: The ultimate Japanese schoolgirl accessory
RocketNews24’s Meg models the entire line of Japan’s new schoolgirl outfit loungewear 【Photos】
Japan’s schoolgirl roomwear outfits are ready for winter with new, extra-warm versions
Japanese company creates new “Kimono Pyjamas” designed to be worn indoors and outdoors
“Boku Sera” sailor uniform loungewear for men is back with a new version for spring
Starbucks Japan adds new Sweet Potato Frappuccino and Latte to the menu, but do they deliver the taste of autumn?
Japan’s first fall color forecast for 2026 is here!
A real-world Pokémon Poké Ball hotel is opening in Japan at a still-secret location [Video]
Starbucks Japan reveals new Tsukimi Moon-Viewing drinkware and gifts for autumn 2026
American tourist in Japan arrested on charges of attempted murder and arson
Kyoto temple bans visitors from wearing kimono
Solo travel in Japan: $3 all-you-can-drink deal at this conveyor belt restaurant is a fun time for one
Japan’s revolving sushi restaurant king Sushiro coming to U.S. this fall with high prices, no tipping
Mini CRT-lookalike Final Fantasy figurines are awesome pixel art music boxes [Video]
Japan Railways announces unlimited-ride train pass for fall travel
Japan’s final Penguin Suica train cards have already shipped, and when they’re gone, they’re gone
Studio Ghibli unveils new anime calendars and diary planners for 2027
Solo travel in Japan: Hidden beer garden in Tokyo is a haven for single visitors
Hobonichi unveils new 2027 planners, diaries and stationery with One Piece, Suica Penguin, Hello Kitty and a must-buy Mini Techo
Farewell Final Ceremony announced for Tokyo’s life-size Gundam statue, will stream live
Family Mart releases new Human Made Cup Noodle in Japan, with freebies for Nigo fans
Japan approves foreign resident visa renewal fee increases of up to 967 percent, starts soon
One Piece Day 2026 brings new art, music, and new cast announcements
Hikaru Utada sings new song in Shinkansen commercial for Japan’s Supreme Class cabins
12-year-old British girl who went missing in Tokyo found safe after visiting anime sites around Yokohama
7-year-old boy left behind on Mt. Fuji by his own dad
Sushi Bus: Japan’s first conveyor-belt bus lets you eat sushi while sightseeing around Tokyo
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Study finds hundreds of people in Indonesia legally named after Naruto, Inuyasha, other anime stars
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
The surprisingly deep differences of sailor suit school uniform collar styes – Kanto-eri and more
The sailor suit kimono combines two iconic fashions into one Japan-packed outfit
Japanese cosplayer dresses as female high school student for new road bike campaign
Japanese sailor suit school uniform gets an upgrade with traditional kimono details
Japanese factory lures new workers with calendar featuring beautiful cosplayer
Cosplay like an angelic student in a winged Japanese schoolgirl uniform
Give some Japanese schoolgirl style to your pet with the adorable schoolcat collar
Our reporter wears the Boku Sera schoolgirl outfit, visits Harajuku, takes purikura
Hello Kitty cosplays as gun-slinging schoolgirl from new “Sailor Suit and Machine Gun” movie
Japanese schoolgirls in sailor suit uniforms demonstrate 82 sumo techniques【Video】
Sailor uniform loungewear for men sells out in 2 days
Japan now has sailor suit school uniform cosplay costumes for your drink bottles
New “rolling” umbrella with wheels lets you take it for a stroll on rainy days
Off-the-shoulder schoolgirl dresses look like something Japan would love, but it didn’t make them
Japanese schoolgirl kimono roomwear line expands with new color options for old-school comfort