I'm having my own sleep issues with a 16 month old so i cant offer much there lol. i will say that a 10 month old may have different sleep needs that the older kids but with time and persistance you should be able to get him on the same schedule. as for feeding, i have never had a10 month old who could hold a sippy cup. as for not eating, perhaps he is getting enough from his bottles. is he having bottles every 4 hours or so? my youngest dcg started at 8 months and had formula every 4 hours which i quickly adjusted to match mealtimes as she approached the 10 month mark but she is a good eater at lunch and snack times. you absolutely have to tell parents that if they arent on board with teaching him to soothe himself to sleep it will take a very long time before he'sold enough to understand the difference of being at home and at daycare. its in everyones best interest to be working together, especially the little one.