I had a problem with lack of supply with my DS so this time was worried the same thing would happen. The LC I was seeing suggested a dream feed between 10pm-12am which will maintain your supply. She said not to let it get past 6 or 7hrs between feeds otherwise supply may suffer, not sure if thats fact, just in her opinion (Barb may be able to confirm that) or just in my case because I did have low supply in the beginning this time too.
Woohoo on the big sleeps!!