The ergoPouch Organic Sheeting Sleep Bag is ideal for little ones with allergies or sensitive skin as the material is 100% organic, with no pesticides or chemicals used. It has a 400 thread count and the lovely lightweight 0.3 tog makes this bag suitable for very warm weather. It is the equivalent of sleeping under just a sheet. It is a unique cross between a baby blanket and a traditional baby sleeping bag. It has the softness and fabric weight of a traditional baby blanket, but the construction and comfort of a baby sleeping bag. Using only the finest materials, the ergoPouch is highly breathable and safe. ergoPouch bags have a slimline fit and special stretch cotton inserts in the shoulders and sides, which allow the baby to move freely and reduce entanglement. The clever 2-way zipper makes for easy closure when putting your wriggly baby to bed, and also gives you easy access for nappy changing. This is an absolutely gorgeous 100% cotton sleeping bag for summer. The ergoPouch is the ideal sleeping bag for little ones with allergies or sensitive skin. Suitable for room temperatures from approx. 24 to 30 degrees. Best for infants who are rolling and sitting, and toddlers. * Please note that ergoPouch have updated their sizing.