Not sure how to answer the poll. I'd pick "it depends" if it were a choice. Also agree "unrefreshing" is not at all adequate on its own to describe my sleep experience. Along with PEM, Sleep is the ongoing major nightmare of this condition for me, and just having a short description of "unrefreshing sleep" absolutely minimizes it. I probably on average wake up feeling worse but a different version of worse than I went to bed with.
My sleep was even more horrendous in the first ~2-3 years of this. Was a form of torture, hours feeling (no words for the experience) before I could finally drop asleep. I used to always be able to nap in the afternoon in my past life. Completely lost the ability to nap.
This year I've experienced:
1. Waking up in a zombie state feeling absolutely awful, usually after not enough sleep (<8hrs) and that state continuing all day. (Frequent)
2. Waking up feeling reasonably ok after not enough sleep. (Occasional)
3. Waking up feeling ok but exhaustion descending a while later - also the reverse.
4. Waking up feeling fully refreshed after a 9 or 10 hr sleep (rare, ~2 or 3 nights a month) - often happens as an exhaustion sleep after days of minimal sleep.
5. Waking up feeling okish, but an extremely unpleasant overwhelming drowsiness descending a few hours later and unable to stay awake & not being able to sleep either. That state lasted several months this year. Thankfully hasn't returned for ages.
6. Waking up for hours in the middle of the night unable to get back to sleep. If I eventually get back to sleep, usually those hours of sleeping till late morning seem to be particularly refreshing.
7. PEM disaster sleep... associated with zombie state, unable to sleep / insomnia & more.