Wide awake from 4.30am

[Elise87]

Hi ladies, so my l.b is 13 weeks old. Beginning of Last week he started doing really well sleeping 4-5 hour stretches before a feed, going to bed at 8.30pm up at 6-6.30 with 2 feeds. But over the last few days he has been wide awake from his last feed from half 4, he used to be able to self soothe and go back to sleep,but he has stopped doing this aswell and is wide awake, anyone got any tips? Thing is he cant stay awake any later than 830-9pm as he gets really grumpy and over tired and i dont think its fair to keep him up later, its just these 4am starts are a killer!