Is waking up early at 5 AM then going back to sleep again for an extra hour at 7 AM, a good or a bad thing? Bearing in mind that I go
Healthline - Too tired to do the math? We're making sure you keep those sleep cycles in check. How much sleep you get can affect everything from weight and metabolism to brain
![Sleep calculator tells you what time you should be in bed | Sleep calculator, Sleep cycle chart, Sleep cycle calculator Sleep calculator tells you what time you should be in bed | Sleep calculator, Sleep cycle chart, Sleep cycle calculator](https://i.pinimg.com/originals/b8/c8/27/b8c827a018662d2a5313dd4a6532ded7.jpg)