When I get up early for the gym I totally have to have the alarm way on the other side of the room so that I have to physically get up out of bed.. then it's less likely that I'll crawl back into bed! Also, the alarm app on my phone makes me do math problems before it will let me hit snooze or dismiss - that usually wakes me up!!
Someone who is busier than you is working out right now.
There will come a day when you can no longer do this. Today is not that day.