Hey LuLu,
Frustrating isn't it. Hope you managed to get back to sleep!
I was awake most of the night but then advised to try the app "headspace" I think this was around 5am, I just laid back with it on and nodded off.
Still not had enough sleep but at least it did the trick and gave me a few extra hours.
It's 9:14am here now. Just woke up, having a coffee then will get on with my dreaded late tax return, oh the joys
lol.
K x