omg daytime naps a nightmare now

My little monkey has learnt to get sit up from laying down and then to insult me more at nap time she decides to pull herslf up and stand up in the cot and laugh at me. Omg what a cheeky little madam she is becoming, my OH has lowered the cot now as before she was leaning over so quickly moved down but the little madam is now pulling herself up using the bars and thinking its funny. My ds was never this clever so young lol or cheeky, although he makes up for it now lol