Did the remote feature that down the road . hurt your ectomorph gaining of weight if will not want to get enough sleep? You tear down muscle during your workout your body to be able to rebuilds. Since it is time the particular body can rebuild that muscle is during sleep or resting. That is because sleep or rest would be only times your body releases natural growth hormones needed to rebuild muscle tissues. So you reason to allow yourself plenty of sleep and rest to conclude the workout process.