It is ok in bed, so you should not only lose weight, but also practice the strength of the lower plate. But the best beds are a little hard. Can I buy a yoga mat? Because it is too soft, it may flash. Be careful not to hurt your waist, you can! Just be careful! It's best to have a sand fan practice in the living room! This will reduce body sprains! Fitness is health! This is not a scar, is it? See what people think!