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A tiny glowing glass greenhouse in the rain at night with a sleeping cat inside
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Video prompt ASMR & satisfying

Rain on a Tiny Glass Greenhouse at Night: Cosy Lo-Fi Loop AI Video Prompt

Endless cosy loops are the fastest-growing kind of AI ambience content: one beautiful scene, gentle motion and rain sounds that people leave on for hours. This prompt is built to loop smoothly, with nothing that starts or ends.

See the full prompt ↓
  • Aspect16:9
  • Length10 seconds (perfect loop)
  • LevelEasy

Endless cosy loops are the fastest-growing kind of AI ambience content: one beautiful scene, gentle motion and rain sounds that people leave on for hours. This prompt is built to loop smoothly, with nothing that starts or ends.

TypeVideo
Best withVeo 3.1, Kling 2.5, Sora 2, Runway Gen-4
Aspect ratio16:9
Length10 seconds (perfect loop)
DifficultyEasy
NicheASMR & satisfying

AI lo-fi loops are one of the breakout styles of 2026, used for study streams, sleep channels and background TV. Autumn rain and warm light are the most popular moods as the nights get longer.

The master prompt

Copy it as it is, or change the parts in [BRACKETS] to make it yours.

Master prompt2,051 characters
Create a cosy, perfect looping ambient video, 10 seconds, 16:9, of gentle rain falling on a tiny glass greenhouse at night. Nothing should start or finish in the clip: every motion is soft and continuous so the last frame flows straight back into the first.

THE SCENE: a miniature Victorian-style glass greenhouse about the size of a doll's house, with thin black iron frames and slightly fogged glass, sitting on a wooden garden table under a night sky. Inside: shelves of small potted plants (ferns, a tiny lemon tree, trailing ivy), a little warm brass lamp glowing amber, a steaming cup of tea on a small stool and a small ginger cat curled up asleep on a folded knitted blanket.

CHARACTER A (the cat): a small ginger tabby cat, curled in a ball with its tail over its nose, sides rising and falling slowly as it breathes. It never wakes up.

AMBIENCE: steady light rain; drops run down the glass panes and drip from the roof edge; the lamp light glows through the fogged glass; outside is deep blue night with a soft blurred garden and a few distant fairy lights.

CINEMATOGRAPHY: static locked-off camera at table height, 50mm lens, shallow depth of field, warm amber interior against cool blue exterior, soft film grain, lo-fi cosy colour grade, 24 fps.

[00:00-00:03] THE LOOP STARTS — Static wide view of the glowing greenhouse in the rain; drops trickle down the glass.
[00:03-00:05] BREATHING — The cat's side rises and falls slowly; steam curls from the tea cup.
[00:05-00:07] THE RAIN — Raindrops gather on the roof edge and fall in a slow steady rhythm.
[00:07-00:08] WARM AIR — One fern leaf moves slightly in the warm air from the lamp; the light flickers very softly.
[00:08-00:10] BACK TO THE START — Everything settles into exactly the same state as the first frame, ready to loop.

SOUND: soft steady rain on glass, gentle drips, a faint purr, a mellow lo-fi hip-hop beat with warm vinyl crackle at low volume.
RULES: perfect perfect loop, no camera movement, no sudden events, the cat stays asleep, no text, no logos, no people.

Short version (for apps with a character limit)

Short prompt472 characters
Perfect cosy loop, 10 s, 16:9: gentle rain falls on a tiny glass Victorian greenhouse on a wooden garden table at night. Inside, warm amber lamp light, small potted ferns and a lemon tree, a steaming tea cup and a ginger cat asleep on a knitted blanket, breathing slowly. Raindrops trickle down fogged glass, deep blue night outside with distant fairy lights. Static camera, 50mm, soft grain, lo-fi beat with vinyl crackle and rain sounds. No text, nothing starts or ends.

Shot-by-shot storyboard

  1. 00:00-00:03
    THE LOOP STARTS

    Static wide view of the glowing greenhouse in the rain; drops trickle down the glass.

  2. 00:03-00:05
    BREATHING

    The cat's side rises and falls slowly; steam curls from the tea cup.

  3. 00:05-00:07
    THE RAIN

    Raindrops gather on the roof edge and fall in a slow steady rhythm.

  4. 00:07-00:08
    WARM AIR

    One fern leaf moves slightly in the warm air from the lamp; the light flickers very softly.

  5. 00:08-00:10
    BACK TO THE START

    Everything settles into exactly the same state as the first frame, ready to loop.

Keep the characters consistent

Paste this description into every clip so the character looks the same from shot to shot.

Character sheet105 characters
Sleeping cat: Small ginger tabby cat curled in a ball, tail over its nose, breathing slowly, never wakes.

Sound and music

Steady rain on glass, drips, faint purr, mellow lo-fi beat with vinyl crackle.

What to avoid (negative prompt)

Negative prompt92 characters
camera movement, cat waking, lightning, people, text, watermark, sudden changes, harsh light

Remix it: ready-made variations

Snowy cabin window

Prompt259 characters
Perfect cosy loop, 10 seconds: snow falls slowly outside a small wooden cabin window at night; inside, a candle, a stack of books, a sleeping dog by a crackling fireplace and a steaming mug on the sill. Static camera, warm and blue tones, lo-fi beat, no text.

Tiny library in the rain

Prompt242 characters
Perfect loop: rain on the window of a miniature library room with warm lamps, shelves of tiny books, a sleeping cat on an armchair and a slowly turning ceiling fan. Static camera, soft film grain, lo-fi music, nothing starts or ends, no text.

Autumn balcony

Prompt245 characters
Perfect loop at dusk: autumn leaves drift past a small city balcony with fairy lights, potted plants, a steaming cup and a sleeping cat on a cushion, rain glistening on the railing, distant city lights blurred. Static 50mm, lo-fi grade, no text.

Tips for each AI model

Model What to do
Veo 3.1 Write 'perfect loop, the last frame matches the first' at the start and keep every motion small and continuous.
Kling 2.5 Use the same image as both the start and end frame to force a perfect loop.
Runway Gen-4 Animate a still with 'subtle motion only: rain, breathing, steam' to stop the camera drifting.

How to make it, step by step

  1. Make the scene image. Generate a beautiful still of the greenhouse first; this is your loop's anchor.
  2. Animate with start = end. Use the same image as first and last frame where your model allows it.
  3. Extend to hours. Repeat the 10-second loop in your editor to make a 1–3 hour video.
  4. Add rain and lo-fi audio. Use royalty-free rain sounds and a lo-fi track you have rights to.

Posting kit

A caption and hashtags you can use when you share your version.

Caption + hashtags171 characters
Rain, a warm lamp and a sleeping cat. Stay as long as you like. 🌧️🪴

#lofi #cosy #rainsounds #ambience #AIvideo #studywithme #relaxing #sleepsounds #Veo3 #cozyvibes #AIart

Questions

How do I make the loop perfect?

Use the same image as the first and last frame, keep the camera still and only allow small continuous motion like rain, steam and breathing.

Can I monetise a 3-hour loop?

Long ambience videos can be monetised on YouTube if the music is licensed and the content adds value. Use your own or royalty-free audio.

Which aspect ratio is best?

16:9 for YouTube ambience and TV; make a 9:16 crop for Shorts teasers that link to the long version.