“Seth material” search engine (Jane Roberts)

Two periods of three hours apiece would be quite sufficient for most people, if the proper suggestions were given before sleep — suggestions that would insure the body’s complete recuperation. In many cases ten hours sleep, for example, is actually disadvantageous, resulting in a sluggishness both of mind and body. In this case the spirit has simply been away from the body for too long a time, resulting in a loss of muscular flexibility.

There are many variations, in fact, that would be better than your present system. Ideally, sleeping five hours at a time, you gain the maximum benefit, and anything else over this time is not nearly as helpful. Those who require more sleep would then take, say, a two-hour nap. For others a four-hour block sleep session and two naps would be highly beneficial. With suggestion properly given, the body can recuperate in half the time now given to sleep. In any case it is much more bracing and efficient to have the physical body active rather than inactive for, say, eight to ten hours.

Such medications also often prevent certain necessary dream cycles that can help the body recuperate, and the consciousness then becomes highly disoriented. Some of the divisions between different portions of the self, therefore, are not basically necessary but are the result of custom and convenience.