Even with my GD remission I still only feel good in loose clothing. It might be the weight of the sheets and blankets trigger your itching going to bet, but our histamine levels are significantly higher in the evening for everyone. Google it. Also for me when I was symptomatic I was distracted with daily activities, but as soon as I lay down in my bed the itching skin was my full focus. I did use Flanax Liniment, a topical capsacian cream, it is hot chilies. It would burn going on and burn for a few minutes more. I used a long plastic cooking spoon to apply to middle of back. My pride kept me from asking my husband because my skin was so ugly all rashed up. Surprisingly the burn of the chilies felt better than the itch. The burn subsides and I could get about 30 minutes with enough itch reduction to fall asleep. Must wash hands after application so not to rub your eyes or they will burn.