Your Kocoono Weighted Blanket should weigh approx 10% of your body weight. However, because everyone is different, you may need a lighter/heavier weight. If this is the case, we can arrange an exchange within the first 30 days. Just send us an email at info@kocoono.com. Please, bear in mind that it can take the body a few weeks to get used to the weight of a Kocoono Weighted Blanket.