Sometimes after a nap in the day / even before the early morning feed , my 13 week old wakes up & starts babbling & playing all by himself . Sometimes he plays for 20 min & then becomes calm for a while before crying to be picked up or for milk .

I think I have to intervene only if he is crying & not even when he calms down.

Is it okay to let him play by himself / have his own calm time or should I intervene immediately after he wakes up coz he may feel lonely or something/ it’s too late for a feed ?

If not how long before I intervene ?