How to get two hours sleep in 20 minutes

EXHAUSTED but too busy to catch some shut eye?

One of the most sought-after tech experiences at this year's CES tech show in Las Vegas actually involves taking a nap alongside 20 strangers.

Stress management and recovery company NuCalm has released its consumer version of its four-part recovery system ReNu that enables people to fall into a deep relaxation and essentially get two hours sleep in 20 minutes.

Twenty strangers catch a nap together at CES in Las Vegas. Photo: Tanya Westthorp

The device 'gently hijacks' and overrides our survival and hyper-vigilant instincts and puts the user into a deeply relaxed pre-sleep, said NuCalm Vice President of Sales David Poole.

"Amino acids and a stimulation device normalise the stress in the midbrain, it stops the stress response, just like alcohol does," he said

"It's almost like a hypnosis of the brain."

People catch two hours sleep in 20 minutes with NuCalm technology. Photo: Tanya Westthorp

The user dons a wearable eye mask, headphones playing neuroacoustic tracks designed to relax and attaches pads behind their neck that push a micro current stimulation through the body.

"You're in a deeply rested state … you're not asleep but you are in a pre-sleep," he said.

The device costs $US799.

Tanya Westthorp travelled to Las Vegas as a guest of Samsung.