Oh dear, I’m sorry to hear that. Hopefully you’ll be able to locate it soon. They’re more likely to come out in the dark and quiet, though that’s not always the case. They tend to follow walls rather than cross open spaces. If you can put the snake’s own home down along a wall, they may actually end up back inside. They feel safe there.
Here are a couple of threads with a lot of tips for finding escapees.
Do keep an eye on any dogs or cats you have. One of my cats has led me to more than one escaped snake. I hope to hear that your baby is safely back with you soon.