People who are deaf often miss critical alarms during sleep, creating serious safety risks.

Now, researchers at Nottingham Trent University have developed a smart pillow sleeve designed to solve that problem without sacrificing comfort.

The textile-based system delivers strong vibrations directly through a pillow, waking users when alarms sound. The team worked closely with members of the Deaf community to refine the design and address real-world challenges.

Scientists built the sleeve as a thin, flexible layer that fits over a standard pillow.

Unlike existing under-pillow devices, this approach removes bulk and discomfort.

The sleeve integrates four tiny haptic actuators, each measuring just 3.4 mm by 12.7 mm.

Engineers embedded these components within a yarn-like structure, making the electronics nearly unnoticeable during sleep.

Users place the sleeve inside a regular pillowcase, positioning the sensors at the bottom.

The design ensures consistent contact without disturbing sleep posture.

“This project was born out of feedback from user groups we worked with in the Deaf community who told us that they can’t sleep well with bulky items under their pillows,” said PhD researcher Malindu Ehelagasthenna, who developed the sleeve as part of his doctoral studies at the Nottingham School of Art & Design.

“The electronics we have embedded in the yarns of the sleeve are so tiny that they cannot be felt by the users, but when an alarm sounds they can be made to vibrate intensely in order to wake even the most heavy sleepers.”

Smart alerts via smartphone

The system connects to a smartphone through a microcontroller, enabling wireless integration with household alarms.

This setup allows the pillow to respond instantly to different emergency signals.

Developers programmed distinct vibration patterns for different alerts.

Users can distinguish between fire alarms, burglar alarms, and incoming phone calls based on how the pillow vibrates.

This feature could prove especially valuable in U.S. homes, where interconnected alarm systems are common.

Integration with existing devices means users may not need to replace their current safety setups.

The team also focused on durability.

The specialized yarn has passed multiple washing tests, ensuring it can withstand everyday use.

Path to real-world use

Researchers plan to refine the prototype and move toward commercialization. They are actively seeking an industry partner to bring the product to market.

The study will be presented at the ACM CHI Conference on Human Factors in Computing Systems, held at the Centre de Convencions Internacional de Barcelona.

Dr Theo Hughes-Riley, an associate professor in NTU’s Advanced Textiles Research Group (ATRG) who supervised the research, said: “This smart design represents a significant step toward inclusive emergency alert systems, allowing deaf and deafblind individuals to sleep more safely — and with greater peace of mind and comfort.”

“It has been an entirely user-led development, stemming from feedback from the Deaf community, who told us exactly what kind of real world challenges they face which might be solved with electronic textiles.”

By embedding sensing technology directly into everyday materials, the project highlights how engineering can quietly improve safety.

For many users, it could turn a pillow into a life-saving device.