A few thoughts, some based loosely on RL experience, currently on infant #3:
1) Bag of Holding as a crib? *shrug* While sleeping likely not the worst environment. Relatively safe from AoE spells barring the Bag of Holding being destroyed and Jr. getting dumped onto another plane. However it depends on how you rule sound eminates from the bag lest baby's requests for food/hygine/comfort go unfulfiled. If you decked out the bag with a light source and some decorations it would make a passable Leomunds Portable Nursery.
Perhaps a HHH is a better idea here, at least while traveling during the day.
2) Ioun stones are a Very Baad™ idea. First the issue of the stones circling while the child is nestled in bedding. Then once the infant hits about 3 - 4 months he'll have enough dexterity to grab the pretty toys out of orbit, and they are definately going to be rated Age 3+. If you use the BoH you'll definately need a jewelery item and some way to keep the sucker on inspite of prying fingers.
3) Save room in the corner of the BoH for hygine products and perhaps refuse.
4) The Ring of Sustinance. Well that's not how I'd rule it, but *shrug* that's how the DM wants to so you're stuck there.
5) The polymorph route, or a wet nurse Paladin has....disturbing psychological implications that I'll leave between you, your subconcious, and your analyst.
If your DM allows you to track down a sex-change belt (a greatest D&D party since their inception
) that would be a slightly less resource intensive choice over Polymorphing all the time, although still might lead you to wonder about those
odd unsettling dreams you keep having.
6) Kids screem at the oddest times. Better get a Ring of Silence if you plan to more in any discrete manner. I'm guessing that will really mess with the kid not being able to hear their own scream, but that's just a hunch.
7) A set of Shield Other rings is a definate must. Dad wants to be a protector he's going to have to step up bigtime. Other substantial magic items for saves and HP buffs are in order as well.
8) Sleeping can vary widely. My second child straight from the hospital slept no more than 12-13 hours/day total, sometimes less, and was fully awake and alert for up to 8 hours at a time. While definately at the low end of sleep total, sleep patterns can vary.
The Reincarnation discussion has me thinking. Is your sex determined randomly during Reincarnation, or does it always remain the same? I think I'll put that into another thread. This actually came up once with a character of mine, but I'll save that for the other thread.
