I never heard about LDing until the other night.

But when I was younger I would always fall back asleep right after I was woken up for school and my parents would be mad, but I thought I was getting ready!

The clock trick never works for me. I had a "Layer Zero" dream my first night, right after my Layer 1-3 that kept jumping around. I checked the time, 3:16. Checked it again, 3:16.....

Checked it later, 3:17.