Activate your memory as much as possible. Think about what day of the week it is, what you did yesterday, and what your plans are for tomorrow.

When you go back to bed resist the urge to be mentally lazy by letting your mind wander or by going to sleep too quickly. Stay focused.

I stay up for about 20 minutes on a WBTB after sleeping approx 5 hours then practise MILD. I now have 100% hit rate for getting lucid.

Good luck!