A general rule of thumb is to choose a weighted blanket that’s 10 percent of your body weight. So, if you weigh 150 pounds, a 15-pound blanket would be a good choice. If you’re closer to 200 pounds, then a 20-pound blanket would be better suited for you. Most adult weighted blankets come in four different weights: 10, 15, 20 or 25 pounds. Kids’ blankets are usually lighter though – they start around 5 pounds.