This has been brought to the atention of Bose already, but seeing that they do not solve the issue...
I have received my replacement and on the first night: my left earbud RUNS OUT OF BATTERY in the midle of the night by it's own - only once that happened on the right earbud.
Now it seems that it is a firmware issue so ordering a replacement was useless...
What is this now? First Sleepbuds generation?