Soundmaking and music can fill you with energy, so much so that you might miss out on the importance of a good night’s sleep. jumango has engineered a solution: tuck this DIY synth into a blanket, and it falls asleep.
Watch; it’s adorable.
勝手に眠るシンセ作った pic.twitter.com/GHrOSkHdyw
— jumango (@jumang4423) May 15, 2026
The creator sends along their project page; it’s all done with a Pi Pico 2 as the brains:
Neru Synth, a sleepy goofy sampler synth based on a JoyReal Busy Board and micon.
- sounds can become funny, strange, chaotic, and a little scary
- you can play goofy samples, then it suddenly falls asleep
- 7 slide switches turn sound features on/off
- 2 knobs control time, chaos, and pitch behavior
- designed for kids to touch and explore
- mistakes become part of the sound
Honestly, put aside what you’re doing, put on some headphones so you don’t annoy loved ones/coworkers, and prepare to get lost in the complete jumango site.
One immediate favorite product is this mega-kawaii microsynth, which I can’t stop watching.
Look, we covered a lot of drum machines and grooveboxes in recent days. Here you go: the future of grooveboxes, like the love child of a SP-404, someone’s favorite ringtones, and a playcenter for babies (in a good way):
Okay, everybody, rush out to implement the rainbow scale!


Let me send you into a linkhole.
Just remember to sleep; throw a blanket over me and I’m good.
It’s like vibe coding with actual vibes. All vibes, no slop. Physical inventions. Love it. I’m also up for adopting this counter at the bottom of that page.
But most importantly, don’t miss jumango’s fanciful music, which would thaw anybody’s heart: