Adequate sleep is such a blessing. In Proverbs the 3rd chapter, Solomon instructs his son about abtaining wisdom and knowledge. In verse 21, [King James version] he tells him: "My son, let not them depart from thine eyes; keep sound wisdom and discretion; [verse 22] So shall they be life unto they soul, and grace to thy neck. [Verse 24] When thou liest down, thou shalt not be afraid; yea thou shalt lie down, and thy sleep shall be sweet." The Lord looks after His own.