Sleep advice please!

What’s the rest of his day look like in terms of naps? What time does he go to bed? How much sleep is he getting on average in 24 hours? Anything environmental - sleep is much lighter in the early hours and because he’s done a chunk of sleep already it means sleep pressure is much lower too. This means they are more prone to disturbances like noises, temperature change and light coming in :)

Also when you’ve tried to make schedule changes have you carried on doing it for a few weeks as it takes a while for the body clock to shift!

Ok so little one’s on average sleep 10-11 hours overnight which he is doing and then with the 2.5 hours during the day he’s getting around 12.5 hours of sleep in 24 hours which is dead in the middle of average sleep needs too! It could be that he genuinely doesn’t need any more sleep! Have you tried capping that last nap or stretching that last wake window?

Have you got blackout blinds or a noise machine?

Oh also when he’s waking so early are you starting the day at that time or keeping it dark and quiet?

If bedtime is 6.30/45, then waking up at 4.30 is a 10hr night, which is normal for some babies. If you want a later wake up, then you will probably need a later bedtime