I am hoping someone will be able to give me some suitable advice on what to do. My ds is 18 months old, usually a good sleeper, settling well at 7pm and waking around 7am. Recently he has started to wake anytime between 12am and 5am and occasionally he will cry briefly and put himself back to sleep. More often though he wakes and cries and cries, I leave him for a while to see if he will settle but to no avail so I go to him, no lights on, talk briefly and gently to lie down and go to sleep, sometimes he does this and I'll rub his back but generally he will just cry with his arms up. I try very hard not to pick him up as if I do he will snuggle in and go to sleep on me then scream if I try and get back into his cot. Sometimes this can go on for about 3 to 4 hours (during this time he will settle for a short period then start off again). If I leave the room he gets really upset by this and so I end up either sleeping on the floor next to him or picking him up when he is exhausted and cuddling him until he is relaxed enough to not worry about being put back in his cot. Help, what am I doing wrong..should I leave him to cry it out? Has anyone had any experience with this? It's beginning to make me feel exhausted during the day and short tempered, and ds isn't coping as well with the lack of sleep then doesn't nap as well and is becoming a vicious cirle. Any suggestions would be hugely appreciated and I am sorry this is so long and waffleeeyyy.