Infant bottle nipple

A baby bottle nipple comprising:

• (a) a nipple body comprising a flexible body wall;
• (b) a nipple tip comprising:
• (i) a first end;
• (ii) a second end opposite the first end;
• and
• (iii) a tip wall forming a cavity extending from the first end to the second end, and
• (c) a valve disposed within the cavity, the valve having an open configuration and a closed configuration,
• wherein, in response to a non-negligible threshold pressure being applied to the valve by a mouth of a user, the valve is configured to move from the closed configuration into the open configuration.

A baby bottle comprising:

• (a) a bottle body comprising a wall, the wall forming a bottle body cavity configured to receive a liquid;
• (b) a bottle nipple comprising:
• (i) a nipple body comprising a flexible body wall;
• (ii) a nipple tip comprising:
• (A) a proximal end;
• (B) a distal end having an opening;
• and
• (C) a tip wall forming a tip cavity extending from the proximal end to the distal end, the tip cavity being in fluidic communication with the bottle body cavity and the opening, and
• (iii) a valve disposed within the tip cavity, the valve having an open configuration and a closed configuration,
• wherein the bottle nipple is operably coupled to the bottle body,
• wherein, in response to a non-negligible threshold pressure being applied to the valve by a user, the valve is configured to move from the closed configuration into the open configuration, and
• wherein the open configuration of the valve is configured to permit a flow of liquid from the bottle body cavity and through the tip cavity.