Hot nights keeping you awake? Simba sale cuts mattress prices by 25%

If you need a new mattress, summer duvet, cooling bedding or pillows – now’s the time! (Picture: Metro/Simba/Getty)

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I don’t know you but I have had more sleepless nights than I have M&S picky bits for dinner in the last few weeks, and it’s because of one thing – the El Niño heatw...