Summertime means the sun is here, and a lot of it. In the northern hemisphere, that means, not only higher temperatures but also late sunsets and very early sunrises. It might prove problematic when you want to sleep in on the weekends, but the sunshine is waking you up a few hours before your desirable wake up time.
Blackout curtains will help to block the sun from invading the bedroom. And there is plenty of products on the market. Also, IKEA has blackout curtains in their vast portfolio. Marjun curtains come in a pack of two, 145 cm wide and 250 cm height. Made out of polyester fabric, the curtains will darken the room and effectively keep the heat out.