Just washed the sleeping bags I got from Tesco and looked on the label for the washing instructions and it says not to use them with babies under 7lb 7oz. Wish they put info like this a bit bigger instead of in tiny writing on the label . Luckily Connie weighs more than this now but she was 7lb so been using them when she was too small for it. Wonder why it's not advised for smaller for babies .