Hi J.,
Congratulations on the upcoming birth of your first child. It is an exciting time.
I have 4 children and I only used a mobile for my first 2. Mostly because we started co-sleeping/bed sharing more with our last 2 and found a mobile really wasn't necessary for us. Overall, they really aren't necessary in the first place, so don't think that you MUST get a mobile at all. Or that a mobile has to match the bedding....your baby doesn't care:) I know you do, you want your babies room to be adorable and comforting. But the mobile doesn't need to match perfectly. Mobiles are used primarily to provide some stimulation for our babies when they are awake in the crib for any length of time. Some parents let babies soothe themselves to sleep, other parents get their wee ones to sleep before laying them down. If your baby happens to be very content upon waking and likes to hang out and look around then a mobile would be something fun to look at. Or your baby could care less about a mobile and will cry the second he/she wakes up until picked up! :)
If you decide you want a mobile, I recommend getting one of the very colorful or basic black, white, and red ones with big graphics. Babies vision is not fully developed for quite a few weeks and these bold colors and graphics will be more intersting and fun to look at. There was some research years ago about black, white, and red bold graphics stimulating the neurons in their brain better. You can probably find things that attach securely to the side of the crib to encourage looking to the side. If you are crafty enlarge some photos (close face shots) of you, daddy, grandma, whoever and adhere them to a bright background color and attach securly to the side of the crib. Or adhere the photos to the mobile:) Babies LOVE LOVE LOVE to see faces...especially yours! Also babies NEED to be rotated from back lying to side lying (both sides), to encourage their tender growing heads to shape more evenly.
I dont' know what your thoughts are on baby sleeping in same room with you. But having your baby for at least the first few months in the same room, whether in your bed, or a side car sleeper, or cradle, or crib is really beneficial to your baby in so many ways. I encourage you to do some research on co-sleeping/bedsharing to find what will work best for you, your partner/husband and your baby.
Much good energy to you in your last few months of pregnancy and as you head into the wonderous unknown of birth and parenting this new little soul.
In peace,
A.
mom of 4. Birth and Parenting Mentor
www.birthingfromwithin.com