I just had a go at putting him in a gro-bag with his dummy & a small bear to hold onto. He waved his arms around (and just waved the bear too). He grizzled & pulled at his face, but eventually went into a light sleep (with some patting, shhh-ing etc). However, he didn't go from the light sleep into the deep sleep - every minute or too, he would wave his arms in the air again. He would then rub his face with his hands & cry (with his eyes closed). I persisted for about half an hour (calming him every time he cried), but then gave up & wrapped his arms. He is now asleep (I think - he's very quiet - I don't want to disturb him!)