Another datapoint: I’ve experimented with sleeping as long as my body “wants” to as e.g. Matthew Walker recommends, which also is around 9 hours. I’d describe the results as disappointing, was probably slightly more tired and not really more productive.
On the other hand, evidence strongly suggests that 5 hours isn’t enough.
So far, the rythm that felt best and led to the highest productivity was sleeping from midnight to 3:20 and from 5:40 to 9:00, but this is currently not possible because I sometimes need to get out earlier than 9:00. Alternatively, just setting the alarm for around 7 hours also does pretty well.
Another datapoint: I’ve experimented with sleeping as long as my body “wants” to as e.g. Matthew Walker recommends, which also is around 9 hours. I’d describe the results as disappointing, was probably slightly more tired and not really more productive.
On the other hand, evidence strongly suggests that 5 hours isn’t enough.
So far, the rythm that felt best and led to the highest productivity was sleeping from midnight to 3:20 and from 5:40 to 9:00, but this is currently not possible because I sometimes need to get out earlier than 9:00. Alternatively, just setting the alarm for around 7 hours also does pretty well.