My 16 month old DS has suddenly (last few nights) started crying hysterically after being put to bed. He was put down tonight at 7.30pm and is still going now at 10.30pm. Me & Dh have been up every few minutes with milk, cuddles, stories, songs etc. As soon as we go in and pick him up he stops crying like a switch has been flipped. He doesn't want to be held - just wriggles out of our arms. He just wants to play. I tried doing shhh-pat, rocking him in my arms, sitting quietly in the dark. Nada. He just wants to play. We can hear him on the monitor settling down and getting sleepy, then he just starts up again like he's really fighting sleep. What can we do? He's always (thankfully) been a good sleeper, and so is DS1 so this is a bit of an oddity. I don't want to leave him to cry, but what do you do with a child who tries to leap out of your arms when you cuddle, but then tantrums when you put them down? If i put the light on and played he'd be happy as larry, but rubbing his eyes and yawning like crazy. And of course sleep begets sleep, so the longer this goes on for the worse it will get (at least in my experience). Any ideas?