Wow Tania, you really have a lot on your plate! How lucky for your nephew that he has you guys looking out for him.

Have you tried dreamfeeding? It works well for some people. I have to say, a 5-hour stretch is really good for a 12-week old! Most 3-months old wont' be able to go much longer than that between feeds; most 6-month olds still feed through the night! Good luck with the sleep.

All the best for the eye tests BG.