Completely agree with Katherine, sleeping through to 4/4:30 at this age is fab hun, I would certainly expect he would still need a feed at that time (he is just under 5 months?). I really wouldn't expect an LO who isn't well established on solids yet to be sleeping through, and that is just a time/age thing. I know from your other thread you've started solids a bit early on the advice of your doctor, however I don't think it becomes really established until they are eating 3 meals plus milk.