You may consider using blackout curtains or an eye mask to block ambient light.

您可以考虑使用遮光窗帘或眼罩来阻挡环境光。

The bed frames are made of cardboard and are 100 per cent recycle, and there will be blackout curtains as well, allowing athletes to sleep and rest at any time.

床架由硬纸板制成， 100% 可回收，并配有遮光窗帘， 让运动员可以随时睡觉和休息。