He has gotten too "rough" to remain safe in his cot. He turns and flips so quickly and is desperately trying to crawl too. In no time he will be able to grab onto the top of the cot and pull himself up. So we decided it's time we put him in his playpen, set all the way to the bottom so that he can't flip over and fall out.
Does he look like he's enjoying himself? I think so...despite being clad in an oversized pyjamas that the mummy insisted on buying!