baby is sleeping loads, sometimes for 5 hours

[DuelingFanjo]

my baby was in special care for 9 days and fed my expressed breast milk every 4 hours. Now he's home he's fully breastfed (no bottle since 5am yesterday) and now seems to only want feeding every 4-5 hours. I try to wake him but he often just won't. Yesterday I fed him at one andthen again at six then at half ten ish. He only woke once in the night.

When he feeds he is on the breast for ages, sometimes an hour.

is this ok? he's now 12 days old. Lots of dirty and wet nappies and seems content.

Weeelll, I'd say, it's all in the weight. If baby is gaining, then surely he's doing the right thing! When DD was three days old, she slept for 16 hours straight. I was in agony!
It's been ages since I BF but I thought that you got supply on demand, the more you feed the more you make. If you top up then that's milk you aren't asking for. If my breasts felt empty, I'd have pumped a bit to stimulate more.
I'm probably all wrong though, just curious mosey about all this!