A day-and-night setup is the most common bedroom configuration in Singapore for a reason. It does both jobs without compromise.
A day-and-night curtain is two curtains on one window. The day curtain (a light-filtering weave) sits in front. The blackout curtain (a dense, opaque fabric) sits behind. Both run on their own track, mounted as a double-track system so each can move independently.
You draw the day layer for privacy in the morning while keeping the room bright. At night, you pull the blackout across to seal out streetlight, neighbouring corridor light, and the early sun. The day curtain stays drawn behind it, and the room reads layered rather than industrial.