Hello, sorry to ask for help- this is my psb, my precious sixth born so I should know all this by now 
I am excl bf him and up until a few days ago he fed 2-3 hourly, sometimes going a little longer at night
But for the past few days he has been sleeping through the night (around 7 hours) and going roughly 4 hours between feeds. Now as nice as this is I am not expecting it to last, but I am worried that he should maybe be feeding more at this age? Should I wake him to feed?
He seems ok, still lots of wet/dirty nappies, he's alert when he is awake, I have no idea about weight gain though
So is this ok or is it a problem do you think?
Thank you in advance for any help