Especially when it comes to light – street lights, neighbour's houses and even the moon.
Not only can it interrupt your shut eye, previous research found too much light in your bedroom increases the risk of obesity.
Thankfully, IKEA has come to the rescue with the perfect curtain range for blocking out light while you sleep: Majgull blackout curtains.
They have a special coating that blocks light from shining through, with the heavy fabric falling softly and evenly.
The best part is, they’re only $59 and come in a range of colours. Sleeping easy has never been so chic.