Mama Usa Icon
Hello! I’m Mama Usa.
I love winter camping, but I’m extremely sensitive to the cold.
(And actually, I’m a gamer who loves games more than food! 🎮)

Camping mornings, or being on duty for the kids’ soccer or baseball games. Winter outdoors involves a lot of “just standing still” time, doesn’t it?
Since you aren’t moving, your body temperature doesn’t rise. That is exactly when this “God-tier wear” shows its true value.

Today, I’m going to share everything about the “Walkable Sleeping Bag (Wearable Sleeping Bag)” that I personally use and dress my children in.
(By the way, this isn’t a sponsored post or anything; it’s just a personal recommendation for an item I’ve genuinely fallen in love with! lol)

Cardboard box delivered ▲ 2 for adults, 2 for kids—4 in total! Delivered in a huge cardboard box♪ Relaxing in the wearable sleeping bag ▲ The sense of security being wrapped up. I never want to leave this spot for the rest of my life…

Biggest Feature: Transforms from “Skirt” to “Pants” with one button!

This wear isn’t just ordinary clothing. It has 3 snap buttons in the center of the hem.

  • When unbuttoned: It’s like a skirt. Spacious enough to cross your legs inside.
  • When buttoned: The hem splits, transforming into a pants-like state.

To use words that moms raising kids will understand best…
It’s a “Giant Baby Romper”!

Just imagine that structure turned into winter gear for adults and children.

🎮 Mama Usa’s Usage Style

When playing games at home, I keep it in “Skirt Type” and sit cross-legged or sit Seiza-style inside the wear to relax.
Conversely, when active—like setting up camp or walking with the kids—I switch to “Pants Type.” The ease of movement is completely different.

Proven in Snowy Mountains! Surprisingly Warm

To those doubting, “Is it really that warm?”
Last season, we went to play in the snow at the Makinoto Pass Trailhead in Oita Prefecture.

I thought, “It’s Kyushu, so it won’t be that cold, right?” But I was wrong—the temperature was minus 7 degrees Celsius!
(I didn’t know Kyushu had such freezing places lol).

Despite the world being covered in silver, thanks to this wear, I didn’t feel the cold at all!

Sledding in snow ▲ Sledding on the snow. With the pants type, there’s no worry about dragging the hem! Snow igloo ▲ You can immerse yourself in making an igloo (Kamakura).

📍 Map of Makinoto Pass Trailhead (Google Maps)

Gamer Mama Usa’s “Wearable Sleeping Bag” Life

Let me introduce what games I enjoy while wearing this.
The titles I play change depending on whether I’m snuggled up at home or out camping.

🏠 Playing at Home (Skirt Type) – Choice!

Using this wear as a “wearable futon” at home and immersing myself for hours is my blissful time.

● The Division Series The Division 2

A shooting RPG playable on Steam, PS, and Xbox. The devastated world setting is irresistible.

See The Division Series Intro Article ▶
● Farthest Frontier Farthest Frontier

Also a PC game on Steam. It’s a simulation about developing a village while surviving harsh winters. Playing a harsh winter game while keeping my room and body warm… That is true luxury.

See Farthest Frontier Intro Article ▶

⛺ Playing at Camp (Pants Type) – Switch!

PCs and consoles aren’t suitable for outdoors (no power!).
Inside a camping tent, the Nintendo Switch is the strongest choice for playing with family and friends.

● Animal Crossing: New Horizons
Animal Crossing

Playing Animal Crossing in front of a campfire at a campsite. This link between “Real” and “Game” is the best.

See Animal Crossing Intro Article ▶
● Overcooked Series
Overcooked

This is the one for playing together noisily! It’s a co-op cooking game that guarantees excitement inside the tent. Standard games like Mario Kart are also solid choices.

See Overcooked Intro Article ▶

[Verification] Tried Using it in Winter Airsoft (Survival Game)

“If I can play ‘The Division’ in real life… maybe it works for real survival games (Airsoft)?”

It worked in snowy mountains, so it should be the strongest gear… Thinking that, I actually ran around the field wearing this one winter day.

🔫 Running in a Sub-Zero Field

I’ll start with the result.
“I got so warm I ended up dripping with sweat.”

The heat retention is too high; frankly, it’s not suitable for active sports where you run around! My body heat got trapped, turning it into a sauna despite mid-winter (lol).

However, it is excellent for “Warming Up.”
There is nothing better to wear during preparation exercises before your body warms up, or during waiting times on the bench.

For soccer or baseball players, think of it as an “Upper-Level Version of a Bench Coat.” For coaches and managers who watch from the outside, and for parents cheering them on, this is truly the “Optimal Solution” wear.

[Experience Talks] 3-Year-Old and 7-Year-Old: How’s the Sizing?

With this kind of wear, choosing the size is tricky, isn’t it? Often, both kids’ and adults’ versions don’t have detailed sizes and are just “Free Size.”

In our family’s case, it changed with the children’s growth like this.

👦 Younger Child (3 years old / usually size 90)

Pants type ▲ Pants Type. The hem catches nicely on the shoes, allowing play without problems. (Back view for some reason lol)

It’s quite baggy, but we make him wear it! (lol)
However, since the skirt type makes the hem too long and dangerous to step on, we always set it to “Pants Type.”

When buttoned, the hem catches nicely on shoes or ankles, so they can play or go for a walk without dragging it.

👧 Older Child (7 years old / usually size 120-130)

Skirt type ▲ Skirt Type. At 7 years old, the knees show, so it’s worn like a long vest.

She grew up. Now, conversely, using the pants type leaves the lower legs exposed and cold.
So, now that she’s 7, “Skirt Type” is mainstream. She wears it with the feeling of a long vest or dress.

Even for Bedwetting Measures!? Eye-Opening Usage

You want your child to sleep in a sleeping bag at camp, but you’re afraid to let them use an expensive sleeping bag because of “bedwetting”… Have you ever felt that way?

In our home, we dress them in this wear for sleeping and just drape the sleeping bag over them like a duvet.
This way, their back and stomach are warm thanks to the wear, and even if they wet the bed, the damage is limited to this wear only. Zero damage to the sleeping bag! (lol)

Since most are made of materials washable in a washing machine, just wash it when you get home. This mental ease is a savior for parents.

“Magic Pocket” and a Slight Weakness

There is a large pocket on the front, surprising even Doraemon.
During camping, mandarins, cookies, and even game controllers are thrown in here. It’s warm when you put your hands in, and you can take out what you need immediately—it’s turning into a Magic Pocket.

As the only weakness, men might find the restroom (urinal) a bit difficult as you have to hike up the hem… but the comfort more than makes up for that trouble!

📏 Product Specs and Colors

Please refer here for detailed sizing and color variations.

Spec Sheet 1 Spec Sheet 2

🎨 Color Variations

Color 1 Color 2 Color 3

Source: Makuake Project Page

🔌 Gamer’s Lifeline! Recommendation for Portable Power Stations
Portable Power Station Usage

When gaming outside, the scariest thing isn’t the enemy, but “Battery Running Out,” right?

If you want to enjoy gaming while camping or outdoors, a “Portable Power Station” is a must-have item. With this, you can charge your Switch and smartphone, and it’s useful in various scenes like:

  • Charging LED Lanterns: Brightly illuminates your night gaming time.
  • Desk Fan: Stays cool and comfortable even in summer camping.
  • Electric Blanket: Keeps you warm during winter camp nights.

Furthermore, if you prepare a “Solar Panel” together, it’s the strongest combo. You can charge the portable power station with the power of the sun, securing energy without electricity costs even on long camping trips.

⚠️ Preparation for Disasters
Portable power stations also serve as “Emergency Power Sources” during power outages caused by typhoons or earthquakes. Something bought for fun becomes an item protecting the family in an emergency. This is truly the wise gamer’s choice!

寝具・就寝時の快適グッズ

冬のキャンプで最も重要な「睡眠」の質を高めるアイテムと、朝まで暖かく過ごすための湯たんぽセットです。

コールマン マルチレイヤースリーピングバッグ

季節に合わせてレイヤーを変えられる万能シュラフ。冬はフルセットで使用することで、布団のような寝心地を実現します。

【筆者おすすめ】ノルディスク アーモンド +10℃

オーガニックコットンの肌触りが最高な封筒型シュラフ。化繊特有のシャカシャカ感が苦手な方に、一番おすすめしたい一品です。インナーシュラフやお昼寝用としても優秀。

マルカ ステンレス湯たんぽ 2.2L

冬キャンプの神器。直火(ガス・IH)でお湯を沸かせるため、冷めても簡単に温め直しが可能。寝袋の足元に入れれば朝までポカポカです。

リバーズ サーモジャグ キート 1200

デザイン性が高い真空断熱ジャグ。寝る前に沸かしたお湯を保温しておけば、夜間の水分補給や翌朝のコーヒー、湯たんぽの追い足しに便利です。

イワタニ カセットフー タフまる

風に強いアウトドア用コンロ。マルカの湯たんぽを直火で温める際や、テント内(換気必須)でお湯を沸かす際の頼れる相棒です。

⭐おこもりキャンプの娯楽・ゲーム⭐

テントの外は極寒。ぬくぬくの寝袋やお座敷スタイルで、時間を忘れて盛り上がれるゲーム特集です。

🎮 ゲーミング着る毛布(ダメ着)

「寝袋に入ってゲーム」を究極的に突き詰めたアイテム。全身を暖かく包み込みつつ、手先が出せるのでコントローラーやスマホの操作が快適です。

🙏 教祖爆誕 ―たった今くだった神託で君を救うよ。―

手札と山札の単語カードを組み合わせて、誰よりも「それっぽい」名言を作る文章作成ゲーム。漢字があるのでお子様にはフォローが必要ですが、語彙力の勉強にもなります。お菓子を賭けて遊ぶと白熱!

😩 はぁって言うゲーム

与えられたお題を、声と表情だけで演じて当て合うパーティーゲーム。「はぁ」の一言で怒りや感心を伝える演技力が試されます。ルールが簡単なので、小さいお子様も一緒に盛り上がれます。

🎮 Nintendo Switch 本体

寝袋にくるまって、みんなでローカル通信対戦!キャンプの夜長にテント内で遊ぶゲームは格別の楽しさがあります。話題の最新機種や定番モデルで盛り上がりましょう。

🎮 【アプリ】伝言ゲーム - ジェスチャーゲーム Guess Up

スマホをおでこに掲げて、周りの人のジェスチャーを見てお題を当てるゲーム。身体を動かして暖まれるうえに、笑いすぎて呼吸困難になるほど盛り上がります(やりすぎ注意!)。
```

Summary: The Strongest Gear for Cold-Sensitive Gamers

Pants when moving, snug skirt when resting. And getting excited with “Animal Crossing” or “Overcooked.”
For cold-sensitive gamers and active moms and dads alike, this should become the ultimate partner.

This winter, let’s wrap ourselves in this “Wearable Romper (Sleeping Bag),” forget the cold, and play to the fullest!

※This article represents personal opinions and is not a promoted article (sponsored content) for any specific product.