Cute cover up: http://www.vintagemeetsglam.com/2015/10/05/bedroom-makeover-part-6-diy-ac-unit-cover/
Hi Donith: Here are a couple of sites that may help. https://www.apartmenttherapy.com/5-ways-to-hide-a-thermostat-or-125352
You've got all kinds of possibilities! You can use fabric, put a wood shelf over it with decor, cover with a curtain panel of light fabric to allow air through, etc.