Amazon: Mermaid Tail Blanket $38.60 (Reg $80.00) Save 52% on this all seasons knitted Seatail blanket, sleeping bag, sofa bed snuggle Mermaid blanket.Snuggle up in this fun blanket! This Stylish Merimaid Tail Blanket is the perfect blanket for a day in with hot cocoa and movies or to cuddle up with a book. Light Blue, other colors and smaller size for kids are available, prices vary.