Sleeping can reduce stress. I'd you are not tired, you will feel better and look better. If you don't get enough sleep You will do bad in school, and will not get a good grade. If you don't get a good grade, you will be stressed. Sleeping deprivation can cause studying and memorizing for a test To be hard. That cause stress too. Hope this help (^∇^)
Sleeping can be replayed to stress because of you don't get enough sleep at night, you would be very tired the next day and that can definitely lead to stress if you don't get enough sleep. You should at least get 8 hours of sleep each night.
I would assume 204bpm because you'd double the 50% bpm to make the maximum bpm.
Explanation:
Only use this answer as a last resort, it's been awhile since I worked on heartbeat and pulse topics. I was also not very good at it in the first place.