I doubt there is, but reflux is a tricky thing, and the
number one reason babies do not
sleep well. Breastfed and cluster feed babies are really dependent on their moms for comfort, so I suspect this is the issue. If Dad is around, perhaps he can do some night consoling...he may not be able to console her at first, and she'll be mad, but at least you will know she is being tended to, and she will learn not to be so dependent on you at night. Good luck.