Wearable ultrasound patch boosts REM sleep without drugs or surgery

A soft wearable patch, called NEUSLeeP, has been developed by researchers at the University of Texas at Austin. This innovative device enhances REM sleep in real-world conditions without the use of medication or surgery. The patch employs gentle ultrasound stimulation and electrodes to track brain activity, allowing it to influence deep brain regions responsible for sleep while simultaneously monitoring the brain's response.

The NEUSLeeP patch was tested on 28 individuals, resulting in a 43-minute earlier onset of REM sleep and a 16-minute extension of the stage. Both healthy sleepers and those with sleep difficulties experienced these benefits. The patch was reported to be comfortable, safe, and free of adverse effects.

Beyond REM sleep enhancement, NEUSLeeP increased heart rate variability in healthy participants, indicating a greater ability to manage stress. Brain imaging also revealed changes in emotion-related circuits, suggesting potential for mood regulation and psychological resilience. REM sleep is crucial for emotional reset and stress adaptation; thus, NEUSLeeP could improve stress coping and overall well-being.

Sleep disorders like depression, anxiety, and PTSD are often treated with medications and behavioral therapy, which may have side effects or fail to address the root causes affecting REM sleep. Future trials aim to validate these findings and explore NEUSLeeP's potential in treating PTSD, depression, and chronic insomnia. The researchers also envision home sleep monitoring, neuroscience research, and personalized sleep treatments.

With a patent application filed and collaboration with UT's commercialization unit, the technology is moving toward market readiness, with the goal of providing a non-invasive and safe treatment for millions suffering from sleep disorders.