Abstract: A nipple comprising a bulbous portion, a tubular portion having a central axis and a first end of the tubular portion connected to the bulbous portion, the tubular portion including a texture band about an exterior surface, the texture band including a first pattern of surface features having a nominal height in a range from about 0.005 inches to about 0.022 inches, and a flange connected to a second end of the tubular portion.

Abstract: This document discusses, among other things, method and apparatus for a non-nutritive suck (NNS) entrainment pulse generator. An embodiment includes a valve assembly in communication with a first pressure and a second pressure to change a pressure of a baglet. A controller can switch the valve assembly to selectively couple the first and second pressures to the baglet to produce a series of pressure pulses within the baglet. In an embodiment, the pulse generator is substantially self-contained. In an embodiment, the valve assembly includes a reciprocating piston assembly to generate the series of pressure pulses. In an embodiment, the NNS entrainment pulse generator is portable.