Must have!
I am carrying twins and was put on bedrest at week 22 for a thinning cervix (1.5cm).  I bought this cradle and was not sure if it was helping.  At my next apt my cervix was at 2.1cm.  Not sure if it was the bedrest or the cradle or both.  I am now 28 weeks and have gained 50 lbs since my pregnancy began (150lbs to 200lbs.)  I can tell a huge difference when I wear/don't wear the cradle.  It especially helps when trying to get up from the couch or chair.  For twins or more, don't hesitate, buy this now!  I bought the large size and only now am considering moving from the middle clasps to the last clasps.
Rating: 5 stars