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sd20 Factory

Devices and accessories for sleep and dream research

What we make ourselves, and what else you need. Revenue goes into our non-profit work; accessories you can buy elsewhere, we simply link to.

Production starts on 1 November 2026. We currently expect a delivery time of 1 to 2 weeks; we will give you the exact delivery date in our reply to your request. We currently only deliver within Germany. For delivery to another country, please send us a request anyway and we will see whether we can find a solution.

Made by us

Traumschreiber TS2607

Traumschreiber TS2607

from 99 €

Forehead EEG for sleep and dream research, education and citizen science: records brain activity, eye movements and muscle tone overnight, with full access to the raw data. Four configurations, tiered prices.

To the Traumschreiber Request
sd20 App

sd20 App

free

Android app for overnight recordings with the Traumschreiber, sleep and dream diary, and "Cook", an AI assistant with recipes for falling asleep and waking up.

Early test preview (sneak preview): over the next weeks we will rebuild larger parts of the app, above all to make it more user-friendly and easier for beginners. The downloads here are mainly meant to show the current state.

Nightly: the test channel with the newest features, as a direct APK.

Nightly APK On Google Play

A major update of the app is coming at the end of October 2026. Until then, we strongly recommend installing the Nightly version.

Snap electrodes, pack of 50

10 €

Disposable adhesive snap electrodes for the Traumschreiber, unopened bag of 50 (20 cents per electrode).

Also available without a Traumschreiber, plus 5 € shipping.

Request in the form

Electrode leads to solder yourself

5 € snap · 10 € gold-cup

Leads with snap or gold-cup connector, the same we solder to the Traumschreiber, for your own electrode layouts. Soldering on the device yourself ends the warranty.

Request in the form

Accessories from other shops

We do not sell these ourselves. The links go to shops where private customers can order too. We get nothing for it.

Replacement battery

Akyga AKY0833: Li-polymer 3.7 V, 560 mAh, Molex 1.25 mm 3-pin connector. Replaceable without tools, see the instructions for use.

At TME

microSD card

For the recordings in the device. A 16 GB card is included; as a replacement, ideally another 16 GB microSDHC card.

At MediaMarkt

Electrode paste

For the gold-cup electrodes (3 snap + 1 gold-cup and PSG configurations). Holds the electrode in the hair and ensures good contact. Not included.

At a specialist shop

Request

  1. Send us an order request here. It costs nothing and commits you to nothing.
  2. Within 24 hours we reply by e-mail: whether everything is in stock and when we can deliver, with the invoice.
  3. If that suits you, you transfer the amount. Once paid, we ship everything to you.
Production starts on 1 November 2026. We currently expect a delivery time of 1 to 2 weeks; we will give you the exact delivery date in our reply to your request. We currently only deliver within Germany. For delivery to another country, please send us a request anyway and we will see whether we can find a solution.
Traumschreiber
Accessories

Shipping: included with a Traumschreiber, flat 5 € for accessories-only orders.

Donation – optional. We are a non-profit and are grateful for any support, so that we can keep offering the Traumschreiber and similar devices.
Total: – incl. VAT and shipping

Your request is sent by e-mail to info@sd20.org and you receive a copy. We only use your data to process the order (privacy).