Look for motorized roller curtain. I have those in two bedrooms. They are actually very convenient, even though I just have the remote control and not any autom

Look for motorized roller curtain. I have those in two bedrooms. They are actually very convenient, even though I just have the remote control and not any automation. DIY persons can also find instructions for getting the shades from IKEA and motors from Ebay. Mine are using motors/control from Somfy. Those have at least worked flawlessly for several years. For the roller curtains there are also models which have "things" on the sides where the curtain slides in. This blocks the light that would otherwise shine in from there. If this is not an option, should look for curtain which is dark from the outside. This should also help a little bit.