A fitness chain is set to become the first in the country to hold ‘revolutionary’ new exercise classes – where participants go for a SLEEP.

The snoozy classes are scientifically designed to reinvigorate the mind – and experts say people will burn some calories too.

‘Napercise’ classes will be held at David Lloyd Clubs from this weekend.

The new type of wellbeing class for exhausted parents consists of nothing but climbing into a bed and having a sleep – because people are too tired to sleep at home.

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Instead of upbeat disco tracks, the gyms will be pumping out relaxing, atmospheric tunes designed to help people unwind and eventually drop off.

The studio temperature will also be dropped to a level that promotes calorie burning during sleep.

Academics reckon napping brings important health benefits, including boosting alertness, alleviating feelings of anxiety or stress and enhancing moods.

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Napercise itself has been developed alongside Dreams sleep expert Kathryn Pinkham.

She said: “Sleep is a lot more important than people realise.

“We tend to focus on the short-term effects such as being tired or lacking concentration, but it is also essential for our long-term physical and mental wellbeing too.

“In addition to a lack of sleep bringing with it a higher risk of developing anxiety or depression, when we are sleep deprived we lack the energy to exercise regularly, and also the mental clarity to make good decisions about the food we eat, which could negatively impact our physical health in the long-run."

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A spokesperson for David Lloyd Clubs said: “According to our research, 86 per cent of parents admit to regularly suffering from fatigue which is alarmingly high when you consider the important role getting a good night’s sleep can play in our overall mental and physical wellbeing.

“Here at David Lloyd Clubs, we’re always looking for new ways to tackle the issues that everyday people face, which is what ‘Napercise’ sets out to do.

“Filling an exercise studio with beds might look unusual, but if it proves to be a success, we’re definitely excited at the possibility of rolling out the programme to more of our clubs down the line.”

Napercise is to be launched at David Lloyd in Sidcup this weekend.