3 month old won't nap in day

[MrsNormanBates]

He'll sleep reasonably well at night but recently will only sleep a maximum of 20 mins and then wake very tired. He used to nap 1-2 hrs at a time.

In average he'll manage 45 mins or do broken sleep in the entire day 7am-8pm.

any advice?

I am putting him down as soon as he's sleepy watching for cues no more than 2 hes awake, he falls asleep then wakes tired and grumpy.

Don't know if bf or ff but I ff and sometimes my 12wk old just needs a little top up before he drops off sometimes just 1oz and he sleeps for a good 2 hrs then

Bf and always feed before a sleep. Could it be a growth spurt? He is feeding more but sleeping less