This is a habit you can break regardless of your sleep time: when you first notice you are awake, just roll off the bed and do 20 pushups.
The commute is long gone but the habit of rolling out of bed immediately never broke. I'm grateful for it. I used to spend half an hour snoozing, groggily working my way out of the bed to start my day. I didn't get a whole lot of extra rest, just wasted half an hour not really sleeping, but not doing anything else either.
For me it's the adventure time. Reminds me of taking trips that require getting up at 4AM.
But the hardest part is, of course, getting to bed early enough.
Gone the route of lined curtains that do a great job of blocking the light. Could never get used to any sort of mask/etc.
I would prefer to drive home in sunlight than drive in, but that may be because I love convertible cars