31ST ST PROJECT · PRE-LAUNCH
Sleep audio, redesigned for the pillow
PATENT PENDING
Bedtime audio, without the usual compromises
DESIGNED WITH SIDE SLEEPING IN MIND
Small, soft in-ear components keep the larger wireless electronics away from your ear and the pillow.
SOUND STAYS WITH YOUR EARS
No flat speakers inside the mask that need to stay aligned as you change position.
CONNECT. DISCONNECT. DONE
Bring the connectors close. Magnets do the rest.
SHORT LEADS. LESS CABLE AROUND YOU
The mask manages most of the connection, leaving only short, flexible leads near your ears.
IN-EAR, NOT OUT LOUD
Properly fitted in-ear audio can provide passive isolation and reduce sound leakage compared with flat-speaker designs.
REMOVE THE ELECTRONICS. SEPARATE THE MASK
Detachable components make it easy to separate the soft mask for cleaning, storage, or replacement.
See how it works
CONNECT. SETTLE IN.
Magnetic connections make attaching the earbuds simple, while the small in-ear design is made with side sleeping in mind.
DESIGNED TO COME APART
The earbuds and electronics separate from the soft wearable in seconds. A built-in zippered pocket keeps the components together when not in use.
COMFORT WHERE IT MATTERS
Soft against the face. Small at the ear. Designed around the way you actually sleep.
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FAQ
Is it available now?
Not yet. 31st St Project is preparing for launch and crowdfunding.How is it different from flat-speaker sleep masks?
Audio is delivered through small in-ear components, so it does not depend on a flat speaker remaining aligned inside the mask.Are the earbuds detachable?
Yes. The short-lead earbud assemblies detach close to the ear.Can the components be separated for cleaning?
Key audio and electronic components are designed to separate from the soft wearable. Final cleaning should follow the product care instructions.Have another question?
Contact us at [email protected]
© 2026 31st St Project · Privacy Policy
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