you should be a little tactful about the amount of sleep you are getting when talking to the sleep-deprived! My DD is 9 wks old and (just like DS was) is very unsettled, especially overnight.
I have just returned from a playgroup and had to endure being told about how much sleep others are getting. With not a whiff of apology or compassion in their voice!
I was also treated to 2 wonderful gems of advice:
"you're very calm about this (DD was currently doing her usual screaming, feeding, screaming) if that was my baby I'd be convinced I was doing something wrong"
"you should definitely stop breast feeding her"
(Just to add, her weight gain is completely fine)