Vaundy’s song “Idea ga Afurete Nemurenai” (イデアが溢れて眠れない) is an energetic track that acts as a creative stream of consciousness. It serves as the theme song for the Fuji TV drama “Sabacan, Uchuu e Iku”.
Song Credits
- Artist: Vaundy
- Album: Idea ga Afurete Nemurenai
- Released: April 20, 2026
- Length: 4:23
- Label: Vaundy Artwork Studio
- Composer: Vaundy
- Lyricist: Vaundy
Vaundy “idea ga afurete nemurenai” Official MV
Vaundy “idea ga afurete nemurenai” Lyrics
Japanese
そこはかとなく
嫌いが勝つようになったね
でも僕だけが
いる世界が少し好きになった
言葉が
瞳閉じた僕の脳、宙を舞い
ととのえない
僕の脳になんか聞こえてきた
「全てを失ったその後で
この先は終わらない旅をしよう」
君がそう言うから
胸が
ドキドキしだしたよ!
この
偶然の先、必然の先、言葉は光すらも超えて
この
天井の先、星々の先、宇宙の先、銀河を超えて
間違いなく残るでしょう
袖伸ばして未来を待とう
僕の瞼流る
軌道はいつも同じ
このイデアが描くでしょう
靴を履いて未来を待とう
まだ、イデアが溢れて眠れない
そこはかとなく
愛が何かわかる気がして
でも僕だけが
わかることなんだってわかったんだ
言葉が
聞き取れぬほどの閃光に
今僕だけが
見える速度まで加速していた
「あとはそう、この旅の中で」
君がそう言うから
胸が
ドキドキしだしたよ!
この
偶然の先、必然の先、言葉は光すらも超えて
この
天井の先、星々の先、宇宙の先、銀河を超えて
イデアが溢れて眠れない
イデアが溢れて眠れない
イデアが溢れて眠れない
イデアが溢れて眠れない
忘れないでおこう
晴天と、この校舎に流れたあの曲を
「時は、光をとらえた情景の
掴みあぐねた、淡い一瞬と」
忘れないでおこう
公転と、僕の軌跡が生み出す人生を
忘れないでおこう
この
偶然の先、必然の先、言葉は光すらも超えて
この
天井の先、星々の先、宇宙の先、銀河を超えて
この
偶然の光、必然の光、運命は秩序を超えて
この
天井の光、星々の光、宇宙の光、銀河を超えて
間違いなく残るでしょう
袖伸ばして未来を待とう
僕の瞼流る
軌道はいつも同じ
このイデアが描くでしょう
靴を履いて未来を待とう
まだ、イデアが溢れて眠れない
よね
イデアが溢れて眠れない
イデアが溢れて眠れない
イデアが溢れて眠れない
イデアが溢れて眠れない
よね
Romanized
Sokohakatonaku
Kirai ga katsu yō ni natta ne
Demo boku dake ga
Iru sekai ga sukoshi suki ni natta
Kotoba ga
Hitomi tojita boku no nō, chū o mai
Totonoenai
Boku no nō ni nanka kikoete kita
“Subete o ushinatta sonogo de
Konosaki wa owaranai tabi o shiyou”
Kimi ga sō iukara
Mune ga
Dokidoki shi dashita yo!
Kono
Gūzen no saki, hitsuzen no saki, kotoba wa hikari sura mo koete
Kono
Tenjō no saki, shinshin no saki, uchū no saki, ginga o koete
Machigainaku nokorudeshou
Sode nobashite mirai o matou
Boku no mabuta nagareru
Kidō wa itsumo onaji
Kono idea ga kakudeshou
Kutsu o haite mirai o matou
Mada, idea ga afurete nemurenai
Sokohakatonaku
Ai ga nani ka wakaru ki ga shite
Demo boku dake ga
Wakaru kotona n datte wakatta nda
Kotoba ga
Kikitorenu hodo no senkō ni
Ima boku dake ga
Mieru sokudo made kasoku shite ita
“Ato wa sō, kono tabi no naka de”
Kimi ga sō iukara
Mune ga
Dokidoki shi dashita yo!
Kono
Gūzen no saki, hitsuzen no saki, kotoba wa hikari sura mo koete
Kono
Tenjō no saki, shinshin no saki, uchū no saki, ginga o koete
Idea ga afurete nemurenai
Idea ga afurete nemurenai
Idea ga afurete nemurenai
Idea ga afurete nemurenai
Wasurenaide okou
Seiten to, kono kōsha ni nagareta ano kyoku o
“-ji wa, hikari o toraeta jōkei no
Tsukami aguneta, awai isshun to”
Wasurenaide okou
Kōten to, boku no kiseki ga umidasu jinsei o
Wasurenaide okou
Kono
Gūzen no saki, hitsuzen no saki, kotoba wa hikari sura mo koete
Kono
Tenjō no saki, shinshin no saki, uchū no saki, ginga o koete
Kono
Gūzen no hikari, hitsuzen no hikari, unmei wa chitsujo o koete
Kono
Tenjō no hikari, shinshin no hikari, uchū no hikari, ginga o koete
Machigainaku nokorudeshou
Sode nobashite mirai o matou
Boku no mabuta nagareru
Kidō wa itsumo onaji
Kono idea ga kakudeshou
Kutsu o haite mirai o matou
Mada, idea ga afurete nemurenai
Yo ne
Idea ga afurete nemurenai
Idea ga afurete nemurenai
Idea ga afurete nemurenai
Idea ga afurete nemurenai
Yo ne
Translation
Vaguely, somehow
Dislike has started to win out, hasn’t it?
But I’ve grown to like this world
Where only I exist, just a little bit more
Words go dancing through space,
Inside my brain as I close my eyes
Unsettled and unaligned,
Something suddenly spoke to my brain
“After we have lost absolutely everything,
From here on out, let’s go on a journey that never ends.”
Because you said those words to me,
My chest…
It started pounding with excitement!
Beyond this
Coincidence, beyond necessity words will surpass even the speed of light
Beyond this
Ceiling, beyond the stars, beyond the universe we will cross galaxies
Without a doubt, it will remain
Let’s pull our sleeves down and wait for the future
Flowing behind my eyelids,
The orbit is always exactly the same
This “Idea” will draw it out for us, won’t it?
Let’s lace up our shoes and wait for the future
Still, the Ideas are overflowing, and I can’t sleep
Vaguely, somehow
I feel like I’m beginning to understand what love is
But I’ve realized that it’s something
Only I am meant to understand
The words, moving inside a flash of light too fast to hear,
Have now accelerated to a speed
That only I can see
“And as for the rest, we’ll find it along this journey.”
Because you said those words to me,
My chest…
It started pounding with excitement!
Beyond this
Coincidence, beyond necessity words will surpass even the speed of light
Beyond this
Ceiling, beyond the stars, beyond the universe we will cross galaxies
The Ideas are overflowing, and I can’t sleep
The Ideas are overflowing, and I can’t sleep
The Ideas are overflowing, and I can’t sleep
The Ideas are overflowing, and I can’t sleep
Let’s make sure we never forget
The clear blue sky, and that song echoing through the school building
“Time is a faint, fleeting moment
Failing to capture a scene that held the light…”
Let’s make sure we never forget
The orbital revolution, and the life created by my own trajectory
Let’s make sure we never forget
Beyond this
Coincidence, beyond necessity—words will surpass even the speed of light
Beyond this
Ceiling, beyond the stars, beyond the universe we will cross galaxies
Beyond this
Accidental light, essential light fate will surpass all cosmic order
Beyond this
Light of the ceiling, light of the stars, light of the universe we will cross galaxies
Without a doubt, it will remain
Let’s pull our sleeves down and wait for the future
Flowing behind my eyelids,
The orbit is always exactly the same
This “Idea” will draw it out for us, won’t it?
Let’s lace up our shoes and wait for the future
Still, the Ideas are overflowing, and I can’t sleep
Right?
The Ideas are overflowing, and I can’t sleep
The Ideas are overflowing, and I can’t sleep
The Ideas are overflowing, and I can’t sleep
The Ideas are overflowing, and I can’t sleep
Right?
Vaundy “idea ga afurete nemurenai” Meaning
“Idea ga Afurete Nemurenai” by Vaundy is an energetic, imaginative song about the overwhelming excitement of creativity and inspiration. The title translates to “I’m so full of ideas I can’t sleep,” perfectly capturing the restless feeling of having endless thoughts racing through your mind.
The song portrays creativity as something uncontrollable and powerful. Vaundy describes ideas appearing suddenly like flashes of light, representing the raw spark of inspiration before it can even be fully understood or expressed. Rather than feeling exhausted by this chaos, the lyrics embrace the thrill and freedom that come with creating something new.

Another major theme is discovering passion and purpose. The opening lyrics reflect on how people often focus more on negativity or things they dislike, but the song gradually shifts toward finding beauty, excitement, and things worth loving. Through imagination and curiosity, the world becomes bigger and more meaningful.
The track also highlights the limitless power of dreams and imagination. References to galaxies, stars, and moving beyond the speed of light symbolize how creativity can transcend reality and ordinary limitations. Written for a drama about students attempting an impossible space project, the song mirrors youthful ambition, teamwork, and the courage to chase seemingly unrealistic dreams.

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