We make that trip a lot, it sounds like you are going down 5. There is a CLOSED rest stop right when you're really gonna need it about 2/3 of way thru, maybe a little further, so there's really only one rest area on the way down. So take advantage of gas station BAs, Chevron's are usually very clean along 5.
If you leave at about 9, you could well hit major traffic slow-downs on the other side of the Grapevine. That was when my baby would wake up and waaaaail.... until we started *driving at night*. Especially on 5, it really is the best option. Not that we haven't come to a total standstill at 1:00 out in the middle of nowhere due to construction. Another reason to use the gas stations for BAs.
Any time you decide to go, it may take an hour or so for babe to settle down into the trip, unless your baby is an automatic sleeper in the car. The first time, your baby might wake up a bit more, or become more alert when waking, because of the unfamiliar space. If you're calm and warm, baby will be too. Next time we go down, it will be our fourth trip with the baby, and she's such a road-trip pro, she knows what to expect by now.
I've had my eye on a neck support 'bean' that One Step Ahead sells - it's flatter in the back than others I've seen, so baby's neck doesn't get pushed forward, and her head will only slightly rool to one side, no slumping. Make sure your carseat is tilted a little - you can do this safely with a thick rolled-up towel under the front end to give it some lift. Some agencies say never do that, my pediatrician suggested it, and the seat is very secure when I do this, so others can say what they will.
We love music when we drive, night or day, but now with a sleeping baby, silence or soft music really is the best option. It's actually kind of nice - when was the last time you had 3-4 hours of quiet? :-)
Supplies for while you're there
- if you're staying with family, don't count on having room in the freezer or fridge for baby's food. If you're buying food, count how much you need and take everything as if you're going to never do laundry again. Just kidding...
- 6-7 bibs, 3-4 spoons, sippy cups, etc, and you should be fine.
- Take back-up pacifiers if baby is using them.
- 2-3 pants, 3-4 tops, 3-4 socks - you can do laundry down there, or pack an outfit for everyday with a couple of back-ups if you just want to be prepared (I did that the first time - We couldn't see out the back of the car btwn her clothes and ours! Now I pack very light and do laundry while there - drop off at a cleaners if you don't have access to a W/D, you get it back the next day).
- We use cloth, but I do disp diapers for the trips now.
- We have a very small high chair/booster that straps to a chair - we got it at Target for ~ $35 I think? Much better than a full-size high chair crammed into the car, or hoping that there is one wherever you go. Take a couple of old sheets to put under the high chair to protect your sister-in-law's embroidered chair cushions (oops, that's a reminder for me....)
- bedding: you may be able to get a Pack n' Play for rent - there are a couple of rental listings when I searched Google http://tinyurl.com/yc7kvdj
The next couple of days, carry a little spiral notebook with you, and write down everything you use for your baby. There's your checklist.
Take your camera! I've forgotten twice. Cell phone pics just don't do it for me.
Enjoy the trip!