CosyCool All Seasons 'Combination Duvets' are the brainchild of a couple, Ian and Ruth Pressman, who could rarely agree on which duvet combination to use.
The problem was Ian never wanted to use more than a 9 tog duvet, and Ruth never wanted to use less that a 9 tog duvet. Most of the time they wanted different togs to each other.
They tried putting an extra (single) duvet inside the cover on Ruth's side, but that kept slipping around. Sometimes Ruth resorted to the option of wearing extra layers, but that felt uncomfortable. And so it went on, until they tried looking for a duvet like the CosyCool. The problem was that nothing like it existed, so they decided to get it made, and CosyCool was started.
CosyCool has now brought blissful sleep to countless couples, mainly through recommendations of couples that have already bought it. So, if you can't agree with your partner which duvet to use, let CosyCool end your disagreements.