The Daily Mail reports that the Buddi bracelet, which records sleep spasms, may help treat Parkinson’s disease.

Despite extensive research, doctors had been baffled as to why patients would sometimes wake feeling unwell for no obvious reason.

But the Buddi bracelet has identified that Parkinson’s sufferers can experience spasms in their sleep, which have previously gone unreported.

It is now hoped the data recorded by the device could help to medics create improved treatments.

The breakthrough was made by the technology firm, which is owned by businesswoman Sara Murray, and provides monitoring alarm bracelets for the NHS, local authorities and Ministry of Defence.