Originally Posted by Erock
Hum... if a full sleep cycle is 90 minutes, has anyone tried breaking that down into three 90 minute sleep cycles? That's 4.5 hours.
Keep in mind that the 90 minute cycle length is only an approximation. In my case it's about 75-80 minutes, but it varies from person to person.
I've been getting 4 cycles (about 5 1/2 hours) for about 7 months now - quite happily, I might add - but the times I've tried to switch to 3 cycles I've been tired the next day.
I'm not saying that 3 cycles can't work, just that at 5.5 hours per day I'm happy with 4.