Anker has unveiled two new sleep-focused earbuds, the Soundcore Sleep Earbuds 4 and 4 Pro, aimed at side-sleepers. Both models build on the noise-masking technology from last year's A30 buds, designed to muffle sounds such as a snoring partner, while adding longer battery life, improved active noise cancellation and a 20% smaller contact area for greater comfort. The Pro model's charging case notably includes a built-in OLED display, letting users control soundscapes, alarms and sleep stats without a phone.

The standard Earbuds 4 offer up to 11 hours of streamed audio with ANC off, or 14.5 hours for locally stored soundscapes, via an upgraded Bluetooth v6.0 connection. The Pro version adds an in-ear PPG sensor to track heart rate, stress and HRV, feeding into Anker's "BioSync" feature that plays adaptive soothing tracks to aid sleep. The Sleep Earbuds 4 launch in October at $229.99/£199.99, while the Pro model follows in November at $349.99/£299.99, with both cases supporting wireless charging.