This also works great on the top and sun-facing side of your tent! It's difficult to tape down securely, so I ended up using a bungee cargo net like this to hold it down: https://www.amazon.com/Bungee-Stretches-Tangle-free-Carabiners-Tighter/dp/B071GD2SN5
That paired with a battery operated fan let me sleep until 10am last year