There'll be a little flurry of products appearing in the next few weeks which Jo sleuthed out at the recent Natural and Organic Products Expo. And this life-changing baby is first up. 'Life-changing'. Well, sleep-changing, anyway.

We've long been massive fans of the muscle-relaxing, sleep-beckoning power of BetterYou's magnesium range. The bath salts are magnificent – but we don't always want a bath before bedtime. The body oil, though – while effective – has a downside. It's a tad sticky, and sometimes makes our skins a little itchy.

So at the BetterYou stand at the show, Jo was handed a tub of this. 'You'll get on better with this,' was the promise. Sure enough, she enjoyed applying the rich nourishing butter – slathering onto arms and chest before bedtime with no rush of heat or itchiness. A pretty dreamy texture, actually.

And then... that's all she knew for eight hours. Eight solid hours of sleep. Almost unheard-of, for a very, very, very long time.

Not surprisingly, Jo instantly found room for it on her bedside table – where she plans for it to live, sleepily ever after.

BetterYou Magnesium Body Butter/£9.95 180ml buy now