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.
But most importantly, don’t miss jumango’s fanciful music, which would thaw anybody’s heart: