Good idea. Anything to get the brain functioning analytically. The reason is that when we go to sleep, the brain is depleted of the neurotransmitters required for consciousness and must recharge itself during sleep. Hence the sleeping brain is running on "empty" and cannot perform the analytical tasks that it does during the daytime. That is why it fails to recognize anomalies or can't remember things.

It seems that WBTB replenishes the neurotransmitters required for consciousness so that when we return to sleep, the brain is partially recharged and can recognize the dream world more easily. But the important thing is to engage in some sort of intense analytical/creative activity during the WBTB period.