Monophasic sleep and variations of polyphasic sleep have their own advantages and disadvantages. Monophasic sleep is generally the most convenient sleep cycle, it has high flexibility in sleeping/waking hours and there is minimal risk of sleep deprivation, but it requires a relatively large amount of total sleep. It is best suited to people working regular hours. Following are the some of the advantages of biphasic sleep cycle: Napping during the day improves memory and cognitive functions. If taken regularly, short naps after lunch can improve cardiovascular health and reduce stress. However, for people who has sleep problems it can perpetuate bad habits and can worsen sleep issues. It is best suited to people living in areas where biphasic
