BTW, all your favorite '90s rockers do children's music now. From Good Housekeeping ...

Establishing a good bedtime routine for a toddler sets an important precedent for future health. Usually, it’s easier said than done.

Some toddlers need nine hours of sleep each day, while others need 16, the doctor said, adding that, generally, 11 to 14 hours is common, and that includes daytime naps.