I've been really lucky with my 2 year old reliably sleeping through the night from 9 months old. We've had spells of him being unsettled when we've had big changes like moving house or moving into a bed but nothing crazy. Last night however he went to bed as normal and woke up at 10.30 screaming the house down, really unusual, I went straight up and he was crying for a hug so I gave him a cuddle and he fell asleep on me, I laid him back in bed and went back in to my bed and he woke up again literally as I lay down and went back to the stair gate on his door screaming for me. I went back in again and laid down with him until he fell asleep, went back to my bed and 5 minutes later he woke up noticed I wasn't there and the screaming started again. I tried leaving him for five minutes to see if he'd go, as he was so tired, but he was getting more and more wound up. We went round and round until 3am with this pattern until I gave up and slept on his bedroom floor. I'm really panicky today that all his good sleep will be out the window now I've done that. I'm not willing to keep doing it as I slept terribly and ache loads though. I'm just not prepared for this as he's always been so good. I'm hoping it's a weird one off but I'm worried I've set a precedent now that I will be there all night. What can I do?