Hi Hun, one sleep throught doesn't necessarily mean he doesn't need it. Just means he didn't need it that night. Many lo's continue to have one night feed for a while. MIne had a 4am feed until 9/10months. If he's taking a full feed then I would say he may still need it. If you did feed him a full feed would he then go right back to sleep? If he's hungry he may not be able to resettle?