Well, it's a week on, and Auntie Becky's tough love solution seems to be working for the nights. We've had a few nights in a row now where Zachary has just quietly laid down for sleep after his bedtime story without having to be fed or rocked to sleep - yay! He also seems to settle pretty quickly at night as well if he wakes up - although it's still hard to just leave him there if he seems really upset. Just need to get something similar working for his daytime naps now. Hopefully it's all part and parcel of him being more active in the day and tiring himself out more - certainly his appetite has increased dramatically over the last week or so, and we've had success with 'raw' melon, pear and banana (all soft enough for him to gum), plenty of corn based crisp snacks, and a welcome return to a few meals I used to prepare for him but which got a lukewarm response last time we tried them. He seems to be eating everything we put int front of him now!
And Zachary is now mastering the art of pulling himself up to standing on anything and everything in sight! The sofa, footstool, blanket box and fireguard are all fair game, as well as (we have now discovered) ...his cot (both in and out of sleeping bag - we're looking forward to nights of a crying baby standing rocking in his cot) and the bath. He can also get himself out of the Bumbo now and spent the time it took me to fill his bath this evening standing by the toilet banging on the lid. Great.
One positive though - because he likes standing, he's keeping relatively still in a good position for nappy attachment!