Must have sleeping bag – Very snug sleeping bag. I am using the thicker liner for my little one in winter in Perth. I also layer her up in sleepsuits for bed so not sure how things would go temperature wise in NZ. Reliable service, excellent turnaround time for purchasing online in Aus. Love the organic material, merino and cute design. Costly but worth it. Zipper needs improvement though, comes right undone at the bottom, unlike grobags which are always joined. Warm, reliable, organic, merino Zipper! Cannot do up in dull lighting!