I'm a Sleep Editor who has tested every cooling bedding product under the sun – this £15 buy is the only thing helping me sleep in the heatwave

Bedroom with unfinished plaster walls, black shutters on the window on the left and a white double bed on the right.

As Ideal Home's Sleep Editor I've spent the past five years testing the best bedding, mattresses, and bed linen on the market.

And during the past five summers I've tested more cooling bedding products and ways to stay cool in bed than I can count.