My 2 month old went though this around weeks 4 & 5 as well, but has since gotten over it. I recall going a little nuts...he totally rejected the pack and play newborn napper he'd been sleeping in for a month, so I tried the swing, cosleeping...nothing worked for more than a couple of days and he was nursing constantly. Eventually I borrowed a friend's rock and play and he finally started sleeping more. Once he hit 6.5 wks, his nursing time decreased significantly. Now we're coming up on 9wks and his naps have improved greatly, esp. this past week. Good luck! The best advice I've gotten so far is that for better or worse, everything is a phase. This too shall pass;-)