This Sunday marks the end of Daylight Saving Time for the year. 

That's great news for those of us who wake up early in the morning and prefer to have some light out when we do it, but not such great news for parents of young kids who struggle with sleep schedules. 

Bedtime can be a challenge for caretakers of all sorts, and savvy marketers know it. These days, there's no shortage of products on the market guaranteed to help kids get a good night's sleep— from Hello Kitty sleep masks, to melatonin supplements for kids.

But do these sleep aids really work? And are they safe?

Julie Wright and Heather Turgeon, authors of "The Happy Sleeper: The Science Backed Guide to Helping Your Baby Get a Good Night's Sleep," have some answers.

To hear the full interview, click the blue player above.