I wish I had this a month ago. Started using it in my 8th month and immediately my back felt better. My massage therapist also noted that I had a lot fewer hard knots in the lower back within 1 week of using it. It is easy to put on and take off, washable, and comfortable enough to wear all day. I do not wear it at night, but you could. The only thing is, it does have a small band of latex that makes it uncomfortable to wear right against the skin when you sweat. I wear it over my maternity pants or a long shirt.