Probably a really silly question! DC is 4 weeks and we're both really getting on with the moby - which is just as well as he won't be put down just yet, not even in the buggy most of the time. I've been taking him out in it wearing his vest and babygro, ie exactly what he'd wear indoors, plus a hat. This seems fine, he's happy and feels cosy to touch. But it's been a cold month - what do I do when it's warmer? Should I take him out in just his vest (or just his babygro)? I don't want to retire the moby, we both love it. Help!