I have been swaddling my DD aged 9 weeks for past month(with varying degrees of sucess) and recently bought a kiddopotamus swaddle me. DD can't wriggle out, but now spends 15 minutes plus per night straining and often throws up,(reflux or lack of adequate winding- not sure). This leads to a pick up, and cuddle and I have to start settling again... Any advice? Or will she just get used to it?