falling asleep while standing up

She is standing!
Tue 18.12.2012 – pulled herself up holding onto baby walker
Tue night – stood by the edge of the mattress than leaned against the wall without holding to anything and stood like this for a good while
Wed – stood up in her bathtub – a soft plastic bowl. She tried to pull herself holding onto the edge but the side of the bowl moves so she used her leg muscles to pull herself up
she has a cold and yet she still goes on – she slept yesterday for one hour and at 9 pm she kept practicing getting up until she started falling asleep while standing and falling over on her little sleepy face