Ds has always been very wriggly and, though I initially resisted on the basis of cost, I found Grobags were the only way to keep him warm and to prevent him from getting his feet caught in the cot bars. He is now nearly 16 months and has been sleeping without a Grobag in the hot weather. Is it worth trying blankets/duvets or should I leave it another year? (The Grobags I have are my sister's and she is due any day now and so will be wanting them back shortly. If I keep using them I will need to shell out!)