A headset which zaps the brain to treat insomnia could soon be available to buy and use at home.
The device targets neurons in the brain responsible for sleep with with small jolts of electricity. Its maker claim it reduces the time it takes to nod off.
The portable gadget, which will cost £399, improved the sleep of more than 70 per cent of insomniacs, according to data.
One third of the population has difficulties sleeping, which means they get less than the eight hours the NHS recommends each night.
Medical treatments for insomnia are limited to potent sleeping pills, which can come with a host of nasty side effects.
The new device, called Modius Sleep, claims to work by sending an electrical pulse into the hypothalamus, a small region of the brain located near the pituitary gland.
It is responsible for shutting down the brain's arousal signals and triggering the transition into sleep.
The Modius device also zaps neurons in the brain stem – the part responsible for sending messages between the brain and the body.
It controls whether people feel awake or sleepy and regulates how much REM sleep – the deepest, most restful kind – we get.
Modius Sleep has launched today on American crowd-funding website Indiegogo and is available for US customers to buy today for $249, with estimated shipping next spring.
It will eventually retail for £399 for customers in the UK and Northern Ireland and $500 for those in the US.
It comes after the success of the brand's first headset, the Modius Slim. It sends electrical signals to the hypothalamus to suppress appetite and trigger fat loss.
But users of the weight-regulating device reported getting a better night's sleep, which prompted its makers to design the Sleep model.
Dr Jason McKeown, neuroscientist and founder of Neurovalens, the firm behind the headset, said: 'After gathering feedback from thousands of Slim device users around the world, what we found was that improved sleep was a welcomed bonus reaction and this became our motivation for making specific changes to our technology to create Modius Sleep.
'Our new headset taps into the power of the brain's hypothalamus, which acts as a mini computer and influences many areas of the brain, including weight loss and sleep.
'Our continued aim is to help people avoid sedatives and sleeping pills as they only mask the underlying problem and come with a host of nasty side effects.
'We use neuroscience to improve lives through safe, innovative, non-invasive products and we have complete confidence our Sleep device is just as life changing as our Slim device continues to be.'
In an initial 30-day study, 95 per cent of Modius Sleep users improved their overall sleep score with 85 per cent claiming that they were more satisfied with their sleep patterns, Neurovalens said.
A further 71 per cent of people with sleep issues reported positive changes in their night's rest when using Modius Sleep.