Nap times

Like, 4 months?

I’d honestly just enjoy these sleepy months and just go with when baby is tired and let him sleep for however long he needs. The naps will naturally fall into a routine and before you know it, the naps will start to drop and then it becomes much easier to get a routine. I’ve never done timed naps, I just used to have a cut off time for the last nap as they won’t sleep at bed time but that was when my girls were much older, around 6ish months possibly even a little later

Around 4-5 months when the naps reduce to around 4 naps a day, then 3 naps at 6 ish months, 2 naps at 8 months ish (rough timelines), the less naps they have the more of a predictable schedule there is. Newborns are not capable of a schedule yet. The baby will fall into their own rhythm naturally

Safe sleep guidelines state all sleep should be in the same room as you until at least 6mo so it doesn't really make sense to consider putting them down for a nap until at least then.

With our first we didn't start doing timed naps until much much older. Like early toddler age when too much day sleep or at awkward times impacted night sleep.

About 12-18 months when otherwise it impacted on nighttime sleep. Mine were late to drop to 3 then 2 naps so it wasn't an issue for ages.