After breast augmentation, breast lift and tummy tuck it is very important to initially limit your sleeping to on your back and little elevated (like in a recliner chair) the reason for this is to avoid excess stress on the incision lines that could pop stiches, and to prevent gravity from pooling too much swelling in one area that could delay healing or again, stress the incisions and make stiches pop.This is most important for the first couple of weeks, and becomes less important the further that you get form surgery and the more healing that has occurred.The exact timing for lifting that restriction can vary greatly depending on exactly how your procedure was done and how quickly you are healing.It is probably best to direct you back to your surgeon for his or her specific recommendations.In my practice I usually start to let patients sleep partially tipped on their side at about 2 weeks, but you want to change position frequently and not sleep all the way on one side or stay there all night long until about a month post op. Tummy sleeping is a whole different story… usually patients do not feel comfortable on their stomachs for any length of time until 2-3 months out just from the stretch on the incision of the abdomen, and from the bulk of the implants where there didn’t used to be anything! Don’t worry though, eventually you will get back to your old sleeping habits comfortably.