A cochlear implant is a medical device designed to provide a sense of sound to people with severe to profound hearing loss. It consists of an internal component placed under the skin behind the ear, and an external sound processor that magnetically attaches to the head. The external processor captures sound, converts it into digital code, and transmits it to the internal implant. New users often ask whether the external processor can be worn during sleep, as this impacts comfort and device longevity.
Wearing the External Processor Overnight Risks and Recommendations
Manufacturers and audiologists generally advise against keeping the external sound processor on while sleeping. The primary reason for removal is the risk of accidental damage to the electronic components. During the night, the processor is susceptible to being knocked off, dropped, or subjected to stress on the connecting cables and coils, especially for active or side sleepers.
The second major concern involves physical comfort and skin integrity. Pressure from the processor or magnetic coil against the skin and mastoid bone can cause irritation, pressure sores, or discomfort. Removing the processor allows the skin underneath the coil and behind the ear to recover from pressure points experienced throughout the day.
For most adults and older children, removing the device provides a necessary break for both the device and the body. However, wearing the processor overnight may be necessary for specific users, such as infants, toddlers, or individuals requiring continuous auditory monitoring. In these instances, protective measures are employed to secure the device, such as soft, custom-designed headbands or bonnets. Care must be taken to minimize strain on the electrical wires connecting the coil to the processor.
Essential Overnight Care for the Processor
When the external processor is removed, a specific maintenance routine must be followed to ensure its function and longevity. The most important step is addressing moisture that accumulates from daily wear, including sweat and humidity. Electronic components are sensitive to moisture, which can cause corrosion and lead to malfunctions.
The processor must be placed into a dedicated drying kit or dehumidifier every night. These systems can be non-electronic, using desiccant pellets like silica gel to passively absorb moisture, or electronic, utilizing gentle heat or a fan to actively dry the device. Some modern charging units integrate this drying function, offering an all-in-one station for charging and moisture removal.
If the processor uses rechargeable batteries, they should be placed in the manufacturer-approved charger. A full charge ensures the device is ready for a full day of use. Regardless of the battery type, the sound processor assembly should be stored in a secure, designated location, such as the drying unit on a bedside table. This prevents accidental damage from pets, small children, or falls.
Ensuring Auditory Awareness While Asleep
Removing the cochlear implant processor overnight creates a safety concern due to the inability to hear alarms or emergency signals. To mitigate this risk, users can employ specialized assistive listening devices designed for the hearing impaired. These devices provide visual or tactile alerts to common household sounds.
Specialized alarm clocks do not rely on sound but use bright flashing lights or a vibrating unit placed under the pillow to ensure the user wakes up. Smoke detectors and carbon monoxide alarms designed for people with hearing loss are equipped with high-intensity strobe lights and a powerful vibration mechanism. These systems provide safety by converting auditory cues into visual or tactile notifications.
Parents of young children with cochlear implants often utilize visual baby monitors that display movement or sound indicators, allowing them to monitor their child without relying solely on auditory input. Ensuring these alternative alerting systems are functional and properly positioned maintains security and peace of mind while the external sound processor is removed.