Period for Placing Baby on Their Stomach to Play

This page is the CodyCross answer for the clue below from Comics, Group 1071, Puzzle 1 (Masks and Capes).

Question is: Period for Placing Baby on Their Stomach to Play

and the answer is: TUMMYTIME

Word Meaning:

TUMMY TIME — (US, colloquial) Time spent by an infant in the prone position while awake and supervised, supposed to reduce the risk of skull deformation from spending too much time supine.

Definitions from Wiktionary.