My ds is like an octopus - he seems to grow extra arms and legs when it comes to changing nappy/bathing/getting dressed. I practically have to pin him down at bath time to get him undressed and then swaddle him in a towel to get him dressed again. I've just seen an advertisement for an Anti-Roll changing mat. Can this really work? Never had this problem with dd who didn't really bother moving much until she was 1!