Our 23 m old suddenly today started climbing in and out of his cot bed. So we've taken his bed apart and he is on a mattress on his floor (long story, but short story is we couldn't work out how to turn it into a bed) As I type I can hear him banging at the stair gate at his door shouting "mummy, mummy, mummy." Any tips on what the **** I should do to try and get him to sleep?? I tried lying next to him and pretending to sleep but he just thought that it was very very funny. Damn