I thought I had similar polishes to Sweet Nothing in my stash, but nothing came really close. I wasn't going to post this but decided other would like to know how other Sinful Colors polishes compared to Sweet Nothing.
Index- Sinful Colors Savage (dried matte, so that was the only one I added top coat to. Can be found in he core line I believe)
Middle- Sweet Nothing (available in stores now!)
Ring- Greek Isles
Pinky- Open Seas (dupe for OPI Mermaid Tears)
Greek Isles and Open Seas were a little more green than my camera wanted to admit.