My two year old (26mnths) started to climb out of his cot at bedtime and during the night. I changed his cot to a bed got him a new duvet and he was very excited. I put him to bed around 7-7.30pm at night and turn the light out after say half an hour of stories. He wants me to hold his hand or lie with him for ages and as soon as I leave the room he gets up. This can go on for two hours. In the night at varying times he will come into bed with us. If I put him back into his own bed he will usually go back to sleep with me lying next to him. Bedtime is becoming so stressful - what can I do to keep him in his bed?