Sorry posting for traffic.
DS is 6 months old so this is our first hot weather. I have a light and a warm sleeping bag for him (1 tog and 2.5 tog). I put him in the lighter one for the first time at the weekend and he just won't sleep in it.
I'm now in a flap because it's so hot and I either put him to sleep in too hot a sleeping bag or he wakes every 30 mins to hour all night, I have a fan on and the windows open but it's still too hot.