It's almost time to pay back the hour of sleep we borrowed last fall.

Daylight Saving occurs this Sunday, as we collectively turn our clocks forward one hour. However, the change can be hardest on infant sleep schedules.

Pediatric Sleep Consultant Joleen Dilk Salyn explains the change impacts infants' mornings, when their sleep is the lightest.

"There's very little melatonin, the sleep hormone, in their system, and there's very little sleep drive at that point," Salyn says.

Joleen Dilk Salyn

Heavy curtains are always helpful in combating sunrise, while white noise will drown out the chatter of birds rising with the dawn.

"And just helps them sleep a bit deeper and a little bit later," she says. "So we can start the day in the 6:30 a.m, 7:00 a.m range, not 4:00 a.m."

For babies with especially sensitive sleep schedules, "any little change throws them off," Salyn says moving their routine (nap times, snack times) up incrementally in preparation.

She notes consistent routines are key for infants. As soon as children are overtired and owe a "sleep debt" Salyn says you begin to see children waking up at night, and general crankiness.

"If we keep them well rested, have long naps and a bed time that's age appropriate... then we avoid that sleep debt."