Thanks for your question -
It is unclear how much massage, garments and other methods of putting pressure on implants (like sleeping on them) helps the implant pocket soften or mature.
There likely isn't any harm in it. You should ask your surgeon because the surgical technique used as well as how long it has been since your surgery may influence the correct answer to this question. For example, if your surgery was relatively recent sometimes massage or pressure can create an increase in bleeding.
Talk to your doctor.
I hope this helps.