Show doubling vp up in sleep when people retract themselves in bed they usually assume a typical doubled up position this same position has been found in all the peoples of the world while sleeping dr A L epstein russian scientist after a long series of studies on this subject concluded that the doubted doubled up position was a subconscious effort to return to the embryonic position it is this same position that an embryo first as in the uterus womb of the i mother various diseases also were found to be represented by various characteristic sleeping positions some people experience a desire to assume these positions wh when en they first begin to feel sleepy but do not take these positions in sleeping |