Baby won’t stop sleeping

In the last 12 hours my 7 and a half month old baby has been awake for about an hour.

I tried to wake him up for dinner and he was having none of it.

In the uk and it is now 10:30pm here. I’m worried there is something wrong with him/or that he will now be awake all night and that I’ve messed his sleep schedule up.

Any advice appreciated