Notes:

1. pose 6b is for low back couches. pose 6 for high back couches
2. you can choose your own pillows for the bed, but it may alter how the sim sits on the bed
3. both baby poses 2 and 5 should work on either adult pose 1 and 4
4. If you choose to use two male parents, there may be some clipping with their thighs on the bed.

Codes

a_bmit_babyhome1 (mom reclining, holding baby on chest)
b_bmit_babyhome2 (baby laying on chest of pose 1)
a_bmit_babyhome3 (sim sitting on bed leaning over pose 1 and pose 4)
a_bmit_babyhome4 (sim lying on bed, holding baby pose 2 and 5)
b_bmit_babyhome5 (baby eyes closed laying on pose 4)
a_bmit_babyhome6 (adult sitting on couch, pose 7 legs on top)
a_bmit_babyhome6b (for low back couches, same as pose 6)
a_bmit_babyhome7 (adult sitting sideways, baby on legs)
b_bmit_babyhome8 (baby laying on adult legs)

CC Used In These Pics (You may choose your own)

Bed pillows by Spacesims
https://www.thesimsresource.com/downloads/details/category/sims3-objects-furnishing-decor-miscellaneous/title/lena-bedroom-big-pillows/id/1211890/

(you may choose your own but it may alter how the reclining sim sits on the bed-sinks through the pillows, for example)

Baby Clothes by QuizicalGin
https://quizicalgin.tumblr.com/post/57026039314/presenting-the-sleeper-footies-for-your-baby-sims