It's called a Fatboy bean bag and I've seen it online from 150 bucks to I can so make this by stuffing 2 sheets that are sown together for a lot less!
7 DIY Giant Floor Pillows
How To Make No Sew Floor Pillow Step By Step DIY Tutorial Instructions. Would like to make something like this for inside Robb's teepee
You don't need no stinkin' sofa! Put some nice fluffy cushions directly on the floor. Take that futon cushion off the frame and fold it against a wall. Add pillows and blankets. The options are endless!
22 Brilliant Ideas For Your Tiny Apartment -- Use giant pillows on the floor if you don't have room for a couch. I like the idea of floor cushions like these for the area under the loft bed.
Bean bag chairs can be surprisingly expensive, so why not try sewing these Giant DIY Floor Pillows instead? They& even more comfortable than store-bought bean bags and much more stylish.