Killed off?
Not at my house. We have quiet time every day from 1 PM to 3PM and anyone who is in the house is required to nap or read quietly.
It might surprise you to know that the scriptures contain good advice on sleep:
Doctrine and Covenants 88:124
The author of the above article spoke much of Evolution in his article. How much more satisfying to know that our Heavenly Father promised us vigor if we sleep well – go to be early and arise early that “our bodies AND OUR MINDS might be invigorated”.
Now this is not the Saviors pattern. The scriptures also teach us that he that keepeth Israel shall neither slumber nor sleep.
Also much mention of sleep in the scriptures overall. Go here and Here
Jenny Hatch