Alvantor Kids Bed Canopy Tents Indoor Dream Privacy Space Sleeping Tents (Mattress Not Included)Upgraded 2 in 1 BED TENT Patent Pending construction. Double side door design for easier access. No collapsed, no bent, no leans off, no unstable, no metal frame and no ripped. Pop up flexible ribs make it easiest assembly and lightest sleeping tent on the market, only 5. 8 lbs of Twin size and 6. 5 lbs of Full size. Used with your existing mattress, need no attached to bed frame, or even used by itself as a privacy tent with floor anywhere. Mattress