Are these breathable and safe as overnight comforters?

Hi Francesca, thank you for your inquiry, the COmforter is made of polyester for quick-drying, a lot of children use this to self soothe by rubbing it on their faces, however in regards to all products of their face we wouldn’t recommend this. We hope this helps. if you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move Store where one of our team experts will be happy to assist you in your product search and help answer any further questions you may have.