A medical device which allows a woman to sleep by switching off an implant in her brain has been stolen.
Rita Carlisle, 53, from Knaphill, Surrey, suffers from a condition called essential tremor.
The stolen remote control gadget sends out pulses to calm the condition and can be switched off so she can rest.
She said: "I'm extremely tired, I'm getting three to four hours' sleep a night, I can't turn the machine off."