Here is a concise summary of the transcript:
**Title:** Sibling Room Swap Challenge for 24 Hours
**Summary:**
* Two brothers switch rooms with their younger sister, Demi, for 24 hours.
* Upon entering Demi's room, they're surprised by its cleanliness and discover various interesting items, including a miniature house, snacks, and a big tub.
* Meanwhile, Demi is in their room, which is revealed to be messy, with mouse traps and a spider.
* The brothers struggle to adapt to Demi's room, finding it too childish and eventually wanting to return to their own space.
* Before the 24 hours are up, they decide to end the challenge and switch back, reflecting on their experiences and speculating about Demi's time in their room.
* The video ends with the siblings preparing to return to their normal lives, with a tease about watching their next video.
Here are the key facts extracted from the text, numbered and in short sentences:
1. **Room Swap Challenge**: Two brothers are swapping rooms with their little sister, Demi, for 24 hours.
2. **Age Mentioned**: Demi's age is mentioned as around 4-7 years old in different parts of the conversation.
3. **Room Observations**:
* Demi's room is described as cleaner than the brothers' room.
* Her room contains a queen-sized bed, many stuffed animals, snacks, and a miniature house.
* The miniature house has a bed, bathroom, kitchen, and living room.
4. **Mini Fridge and Treats**: Demi's room has a mini mini-fridge with chocolate and other snacks.
5. **View from the Room**: The room offers a nice view, including a trampoline and animals outside.
6. **Mouse Trap Discovery**: A mouse trap is found in the brothers' original room.
7. **Spider Sighting**: A spider is spotted in Demi's room during the swap.
8. **Air Horn**: An air horn is discovered and used in Demi's room.
9. **Video Watching**: The brothers watch an old video of themselves with Demi from about three years prior.
10. **Age at Video Time**: Demi was around 4-6 years old in the video; now she's around 7, and one brother mentions being 10.
11. **Challenge End**: The room swap challenge ends with the brothers returning to their original room.
12. **Room Condition Concerns**:
* Concerns about making Demi's room dirty or eating all her snacks.
* Denial of ownership of underwear found on the floor in the brothers' room.