Evelyn vs. Mom and Dad...conclusion

"NIGHTTIME PARENTING LESSON #1: Babies need to be parented to sleep, not just put to sleep. Some babies can be put down while drowsy yet still awake and drift off to sleep by themselves, others need parental help by being rocked or nursed to sleep.

NIGHTTIME PARENTING LESSON #2: Some babies need help getting back to sleep.

Some "resettlers" or "self-soothers" can go through this vulnerable period without completely awakening, and if they do wake up, they can ease themselves back into a deep sleep. Other babies need a helping hand, voice, or breast to resettle back into deep sleep. From these unique differences in sleep cycle design, we learn that one of the goals of nighttime parenting is to create a sleeping environment that helps baby go through this vulnerable period of nightwaking and reenter deep sleep without waking up...Nightwaking has developmental benefits. Sleep researchers believe that babies sleep "smarter" than adults do. They theorize that light sleep helps the brain develop because the brain doesn't rest during REM sleep. In fact, blood flow to the brain nearly doubles during REM sleep. (This increased blood flow is particularly evident in the area of the brain that automatically controls breathing.) During REM sleep the body increases its manufacture of certain nerve proteins, the building blocks of the brain. Learning is also thought to occur during the active stage of sleep. The brain may use this time to process information acquired while awake, storing what is beneficial to the individual and discarding what is not. Some sleep researchers believe that REM sleeps acts to auto-stimulate the developing brain, providing beneficial imagery that promotes mental development. During the light sleep stage, the higher centers of the brain keep operating, yet during deep sleep these higher brain centers shut off and the baby functions on her lower brain centers. It is possible that during this stage of rapid brain growth (babies' brains grow to nearly seventy percent of adult volume during the first two years) the brain needs to continue functioning during sleep in order to develop. It is interesting to note that premature babies spend even more of their sleep time (approximately 90 percent) in REM sleep, perhaps to accelerate their brain growth. As you can see, the period of life when humans sleep the most and the brain is developing the most rapidly is also the time when they have the most active sleep. One day as I was explaining the theory that light sleep helps babies' brains develop, a tired mother of a wakeful infant chuckled and said, "If that's true, my baby's going to be very smart."

- Exerpts from askdrsears.com