Connie, I've only started to use the growbag about 2 months ago and DS loves it. I too think it's too cold to just use the growbag over a long sleeve wondersuit, so I put a blankie or two over it. I have the bonds 'winter' growbag, it's excellent. Oh, and we got ourselves a grow egg to read the temperature in his room (he's only been in his room overnight since 3 weeks ago, he used to sleep in a cradle in our bedroom). I have an oil heater in his room so I always set it to about 21-22 degrees. I know you're supposed to have bubs sleeping between 18-20 degrees but that seems too clod to me.... My DS hated being wrapped right from the beginning so that's why the growbag is an excellent idea. I always used to put 2 or 3 on him when he slept until I got the growbag. If you're worried about his hands being cold (my DS's hands are cold sometimes too) you can always put mittens on them. Remember, just because his hands are cold doesn't mean he is cold.