When i sleep

This week iv been left to look after the parents house and feed the cat while there on holiday a task that i thought wouldn't be to hard the fridge would be stocked. I thought id take advantage of this situation of feeding the cats first thing in the morning as an opportunity to shift my sleeping pattern back to a closer to normal time, this hasn't even closely happened yet i've managed to wake up at the right time so that i can feed the cats but find that the second i sit down after i just fall straight asleep again. altho i usually enjoy the night time i feel its about time i joined the majority of the world and live my life during the day rather than the night, especially as now my uni life is nearing its end im going to have to get a real persons job which is likely to start during the day so unless i find some way to change the time zones so that it fits my sleeping pattern.