Thank you both - I didn't think I'd be alone in this situation and it really helps to have feedback and suggestions.
Like lots of parents now it seems like they've read almost too much on child rearing rather than trust to instinct/common sense (certainly when DGS was a baby/toddler) which adds to the anxiety when things aren't going well (as must happen for most parents at times - got to ignore those who brag about their 'perfect' children!) I doubt DSIL's mother was too lax or too strict (but his father died when he was 13 and I know that had a deep effect on him). He finds it hard to discipline DCS even though he can see the effect and the stress it's causing my DD. At 51 he's older than his father was when he died of a heart attack so maybe he's afraid he might not be around to see his son grow up either (and he's over-weight). He has come around before and they've worked as a couple in getting DGS into a good, regular sleep pattern so I hope this will happen again. I was pleased to see that DGS had been banned from using an iPad (or perhaps only for restricted periods) as he would spend all day playing Angry Birds if allowed. This up and down, inconsistent parenting doesn't seem good for any of them but hopefully they'll work it out soon. I'll be here to support (I probably wasn't always consistent as a parent either but both my kids have become lovely adults so there's hope for DGS too!)
Adverts that are being shown on the tele
Angela Rayner cleared by HMRC. What a coincidence!
You swap sleeping positions with your pet , where are you sleeping tonight?


