I'm having this same issue, but not a 'problem'. It's difficult, because sometimes I think my 10 m/o isn't getting sufficient sleep. But he wakes up happy and smiling! When I do nurse him to sleep at night, he falls right back into dreamland and I don't believe he's stumbling out of sleep just to 'work me'. I've yet to find a mom (maybe they're out there, I just don't know any) who has NEVER used a bottle and feeds ON DEMAND, keeping up her milk, who DOESN'T have to feed in the middle of the night(I'd imagine she'd be quite full by morning). Now, I don't believe it's because he's so hungry he has to have sustenance! I believe it's the comfort and cuddles he desires & needs from the only one who can provide it--his mama! I love that! It's only a season and he won't do this forever, so I embrace it and I don't let parents get me down, who think I'm so 'inconvenienced'...I am blessed to be a SAHM, blessed to have my son and blessed to NURSE ON DEMAND! I say if you CAN, DO!
Enjoy that baby and see you at the lake!