Both my kids rooms have black out curtains bit because they're eyelet curtains they still let light in and both are light sleepers. We've currently got black out fabric on the windows, bit it looks rubbish and makes it difficult to open windows.
In one bedroom it should be fairly easy to get a blackout blind in the recess of each window (there are 3!) But the second bedroom has one large window that is like a bay window but only on one side. I'm assuming I couldn't really use blackout. Blinds in this case
Does anyone have experience of getting rooms properly dark?