... that's the equivalent warmth to a sleeping bag (i.e. worn over PJs and replaces a blanket) for a 9 month old? As he's just pulling himself to standing in the cot, his sleeping bag is now a nightmare as he gets his feet tangled in it and falls over, crashing into the cot bars! And no chance of getting him to stay under a blanket! So I need some sort of thick outer sleepsuit, with feet so he can't get caught up in it, iyswim.
Nbg you are a genius... just been out to Primark and bought 2 of the fleecy suits (oh and a few other things I couldn't resist! ) DS has always been a Tesco baby so Primark babywear is a v exciting new revelation (actually much nicer, and cheaper, than Tesco). Think I will put him in a short-sleeved vest, PJs and the fleecy thing, as the material isn't as thick as the sleeping bags - though has arms so warmer in that way I suppose.