I purchased this for my 3 years daughter and it has served its purpose, however I wouldn’t suggest it much for an adult and I wouldn’t call it a “sleeping bag”. The end is open and so isn’t even that warm, but it’s definitely a cute blanket to use when you relax on the couch.
One negative thing I have to say is that once it arrives, it really had a strong smell, like chemical stuff, but luckily it went away after one wash. The colors look less vibrant in person.