DS age 2.5 can now, as of last night, climb out of his (huge) cot. So today for his nap I put him in his sleeping bag and he still got out- THUD!-hits the floor, shuffles out of the room looking for us. Does this now mean the end of the cot? Is it too dangerous to leave him in it when he could leap out of it in the night and brain himself on the floor/fireplace. Especially with sleeping bag on I imagine he'll fall out head first. Do we have to get a bed now? I worry i won't hear him/wake up and he'll fall out headfirst and I'll find him there in the morning ! Unconscious Do I lock his bedroom door so he can't get out and wander around while we're asleep?