Aghhh! 6.5 is a terrible sleeper!

[AussieGirl78]

Hi!
I have a 6.5 month old who is an awful sleeper
He doesn't have any decent sleep through the day at all - I'm normally lucky if I get 40 minutes from him and even then he has to be held to go to sleep

I've been doing CC with him of a night but its still taking him about an hour to settle and he is very restless of a night

He'll sleep for an hour or so after his bath/bottle of a night then screams (right on the time I'm doing dinner) and ends up being brought downstairs as I can't leave the meal to sit up with him

He is still in our room but we are thinking of moving him in with his brother but dreading the disruption

I have no idea what I'm doing wrong with him as his older brother was sleeping through from 2 months old and is still a dream of a day and night with naps

Any advise/help would be greatly appreciated as it is now cause arguments between me and my other half who loves his sleep...

Thanks!