M&S shoppers rave about £8 high rise knickers that are amazing to sleep in

M&S underwear is second to none if you're looking to shop on the high street.

There is one particular design that's high on shopper's radar and it only costs £8.

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• Flexifit™ High Rise Sleep Knickers, £8, from M&S -

The have become an instant hit, receiving an average rating of 4.5 out of 5 stars since hitting the shelves.

The Flexifi design may resemble cycling shorts, but it is the silhouette that makes them a whole lot more comfortable than conventional pants.

They feature a cotton gusset for optimum comfort when you sleep, while the rest of the brief is made from modal and elastane for stretch.

This design, made from lightweight and stretchy Flexifit fabric, is also high rise and falls mid-thigh so they are longer in the leg.

The knickers are available in marl grey or , and are available in UK dress sizes 6 to 28, although sizes are selling out fast.

But we are not surprised they are being snapped up quickly by bargain-hunters, who have hailed them as "the most comfortable thing ever worn to bed".

One glowing reviewer shared on the M&S site: "I love these shorts they looked like they may be a bit skimpy but when you try them on they are so super soft and stretchy they aren't skimpy at all.