Can’t sleep, won’t sleep

I’ve been up since about 1am with Jasper. He’s just awake. He’s not sick. I’ve tried him in our bed, I’ve tried him in his. I’ve given him a bottle, I’ve sat with him, I’ve given him Panadol.
It’s now almost four.
I’m sitting here typing this to distract myself from his plaintiff cries of “mama, mama”. A first. That is breaking my heart.
But now there is silence so I might try and find sleep.