Last year DS (3) slept in his gro-bag with a blanket on top. He's much bigger this year and won't entertain the idea of cramming in it once more, but seems way too little for a real sleeping bag.
Blankets just don't seem snuggly enough - and tots aren't supposed to have high tog ratings anyway, are they?
So what shall we take for him to sleep in? Any advice would be appreciated!