vitaka - I do think dreadful sleep quality can cause fatigue, but admittedly I'm just going from my own experience. Funnily enough I seem to spend 90% of my time in REM sleep, judging by how much I dream - feel like I have a more refreshing sleep when I don't dream (or at least remember my dreams).
Unfortunately I don't have a single suggestion for improving sleep quality. If I knew how to do it, I'd have done it years ago.
Dx Crohn's in June 2000. (Yay )
Tried: 5-ASAs, azathioprine, 6MP, Remicade, methotrexate, Humira, diets.
1st surgery 20/2/13 - subtotal colectomy with end ileostomy.
2nd surgery 10/7/15 - ileorectal anastomosis. Stoma reversed and ileum connected to the rectum.
Current status: Chronic flare. Do I have any other kind?
Current meds: 50mg 6MP; Entyvio (started 3/11/16)