Is it safe for me to lie flat on saline over the muscle breast implants?

You are at an increased risk of rupture due to the size and age of the implants. Typically patients are okay to return to normal sleeping positions after they are recovered from surgery but you have a more unique situation. I encourage you to speak to your surgeon about your concern and to discuss alternatives for recovery.

Once healed, there are no absolute contraindications to sleeping prone.

Implants (saline or silicone) are very durable and are unlikely to rupture from bodyweight. While not impossible it is not a significant cause for concern.

As always, discuss your concerns with a board certified plastic surgeon (ABPS).

Generally these days the implants that Cosmetic surgeons should be using should not be able to rupture that easily. If you are concerned about the durability of your implant, find out what brand they are. Saline implants are more maintenance than silicone and are at a heightened chance of rupturing over silicone in general. We never recommend putting saline implants on top of the muscle for a few reasons. Typically though, waiting at least 3-4 weeks post surgery to return to normal sleeping positions is advised. If you are still within the 3-4 week range after having your augmentation, sleeping in an upright position is best.