The following notice appears on the John Lewis website:
BOSE NOISE-MASKING SLEEPBUDS
Stock number: 897 30318
This product was sold since June 2018 from John Lewis & Partners shops and johnlewis.com
Bose have taken the decision to discontinue this product, as although the battery functions safely, it does not work as consistently or predictably as it should to meet their standards. This results in the Noise-Masking Sleepbuds not fully charging or powering down unexpectedly.
Customers should contact the supplier, Bose, (https://www.bose.co.uk/en_gb/support/service_and_repairs.html) who will be able to arrange an exchange or refund.
For further information visit https://www.bose.co.uk/en_gb/support/products/earphones_support/noise-masking-sleepbuds.html
We’re sorry for any inconvenience or disappointment this product issue may cause you.
11 October 2019