NippyLid Universal Baby Bottle Lid and Nipple Cover (Soft, Flexible, Silicone, Pink) -Patent Pending. NippyLid, universal baby bottle lid and nipple cover is the solution to the common problem of lost baby bottle lids. Keep your baby happy and healthy with doctor and parent endorsed NippyLid. "Never lose the lid again"! In case you have lost all your baby bottle tops, NippyLid fits most slim neck baby bottles like Dr. Brown, Gerber and Evenflo.