The complaint of non-restorative sleep (NRS) is pervasive in ME/CFS, but NRS is considered a sleep disturbance rather than a sleep disorder.
Researchers say that when people with ME/CFS also have sleep disorders, such as insomnia or restless legs syndrome, it doesn't appear that treating the sleep disorder helps alleviate symptoms of ME/CFS.
They also say a sleep-disorder diagnosis exclude an ME/CFS diagnosis.
More on Sleep
Photo © Angelo Cavalli/Getty Images