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9. Cleaning and maintenance
WARNING
• Do NOT clean the sleep aid in the washing machine or dishwasher. Do not use any
chemical or abrasive cleaning agents for cleaning.
• Clean the sleep aid with a slightly damp cloth. If it is very dirty, you can also mois-
ten the cloth with a mild soapy solution.
10. Troubleshooting
Problem
Possible cause
Solution
Device will not switch on
Flat batteries
Insert new batteries
Sounds are very difficult to hear
Batteries almost flat
Insert new batteries
The device will not switch on
although new batteries have been
inserted
The device is faulty
Contact Customer
Services