Brrrrrrrrrrrrr – it's super-chilly out there today. Hands up who wants to snuggle up under a blanket? Yup, me too. We're heavily into cosiness, but a draughty Victorian house sometimes makes it difficult, so the children have become fans of the good old-fashioned hot water bottle. Kitty was recently given an extra-long snuggly zebra one from Potwells and it's been a huge hit. So I thought I'd delve into the hot water bottle world to uncover the hottest designs for kids. Remember:replace rubber bottles regularly and never fill with boiling water or use heatable grain-filled toys for a water-free alternative.