So each night when I go to bed I am woken several times by dd, 15 months, moving around her cot in her sleep and clunking her head against the ends. It doesn't usually wake her, or if it does she settles herself quickly, but just wondered is this normal? If I put her lower down the cot she moves herself up it. I don't want to use bumpers as i think she's use them as a step to climb out of it, and the ends are solid anyway, not bars. This is why skulls are thick right?