Sending sleep vibes to you all & wishing some for my DS too.
I'm clinging to what fillyjonk & hunker have said and am hoping that by the 18/19 month stage DS will have settled and will sleep for a good 5 hours(I have said this at 6, 9, 12 and 15 months too, so don't hold much hope...)
But I do agree, I think some babies just don't sleep