hi there
by cluster feeds- what do you mean exactly?
I think you're sort of mixing DF with cluster feeds.
DF is when you feed your baby in his sleep after he's been put down for the night, not later than at 10:30/11pm [before your bedtime] to avoid his waking up in the middle of the night asking to be fed.
cluster feeds are the feeds you offer before bedtime to fill your baby up so that he doesn't wake before DF- that's for younger babies.
for 4,5months old baby you don't usually do the cluster feeding, just DF.
here's more info:
DF'tanking up'hth
Monika