Stephen sleeps in a grobag and has done since he was about 4 weeks. He sleeps so well in it. He also hated his arms being wrapped and always got them free.I'm sure the cheaper sleeping bags are just as good. However I use the sleeping bag so much that I reckon it was worth it. Compared to some of the smaller clothes he had that he may have only worn 2 or 3 times, he's worn his grobags every night for 8 weeks and will fit in this size for another few months yet.

I also don't use mittens on his hands. He likes to suck his hand. Also even though his hands sometimes feel cold his neck and tummy are always nice and warm. I was initially concerned his hands felt cold but have since heard that the cold hands don't matter if his neck and tummy are warm.