Get Cozy 

If your goal is to infuse maximum coziness into your new underground oasis, opt for warm, luxurious textures. You can incorporate them in big ways, like with a velvet or chenille sofa, or with smaller additions, like plush toss cushions and knit throw blankets on your chairs, or placing a super soft rug underfoot. These touches will make the room feel inviting and entice everyone to come together for movie nights and family hangouts more often

Annapolis Stone Washed Cotton THROW BLANKETS in Niagara Blue, Faded Rose, Phantom Black, $149 each, everlayer.com