one pre-washed four-layer 100% cotton muslin cozy sleeping bag

• Warm: four layers of 100% cotton muslin
• Breathable: keeps baby comfortably warm
• Safe: eliminates loose blankets for a safer sleep
• Comfy: gets softer with every wash

aden + anais® warms up the tradition of muslin with our cozy sleeping bag. Perfect for cooler nights or air-conditioned nurseries, the four layers of 100% cotton muslin makes this a must-have to keep baby comfy and cosy, all year round. Available in a variety of sizes, it's the perfect infant sleeping bag for babies who have outgrown swaddling or for toddlers to drift off into a cosy slumber.

Whats is TOG?

TOG is a unit of measurement used to calculate the thermal resistance (warmth) of a product. See below for a helpful chart that explains which product and TOG rating is right for your baby based on the ambient temperature of the room. - See more at: http://uk.adenandanais.com/en-gb/content/what+is+tog/what-is-tog.aspx#sthash.W5hdOHYo.dpuf