Can't fix my sleep cycle due to daydreams

[Xyz]

I have problem getting up before completing my sleep, whenever I stay up late and then try to get up from sleep with a help of an alarm, i first get into consciousness and then tell myself how am going to get up from my bed after I have this daydream session only to find myself fall unconscious due to sleep again. Then even If I don't sleep during the daydream session I can't get off the bed and do my 'really mandatory work' in real life before spending the time on my bed enslaved to these daydreams.

Because of this my sleep cycle has become crap.