What is the best time to sleep and how many hours we should sleep?

In my opinion, it is good to sleep on a regular basis, and not bad to sleep at a late time. What is more important than when to sleep is how much quality sleep you have each day because our body needs enough rest after work every day. It depends from person to person how many hours to sleep. However, I think we need at least over 5 hours a day to recover physically and mentally. But I don\'t mean to say when to sleep is not important, as the old saying goes, one hour\'s sleep before midnight is worth three after. There are many ways and tools to make our sleeping time better, such as ergonomically designed pillows and beds. I strongly recommend you try it. Sound sleep will help you make a wonderful day. If you toss and turn at night and get up on the wrong side of the bed, you can expect that that day could be another bad and tiring day. on that note, investing in good pillows and beds is worthwhile and a must-do in some sense.