How long do the Sleep Patches last? Robert Shockey August 04, 2021 02:08 Updated Sleep Patches can be used nightly. Each patch can be worn twice. Related articles Where do I need to place the Sleep Patch? What if the Sleep Patch does not work for me? PURIFY PATCH - Natural Detox Now Released! How long do the Body Relief Patches last? I have migraines will Body Relief help? Comments 0 comments Please sign in to leave a comment.