Sleep
How Much Babies Sleep, By Age
Baby sleep varies widely by age and individual, so ranges are more useful than one required total.
Sleep
Safe sleep comes before every other sleep topic on this site, and it follows current AAP guidance without softening. Firm flat surface, on the back, nothing else in the space.
After safety, these guides cover what infant sleep actually looks like at different ages, why night waking is normal, and what the evidence does and does not support about routines.
Sleep
Safe Sleep for Babies: What the Guidance Actually Says
Put a baby on their back for every sleep in their own clear sleep space on a firm, flat surface that does not indent or incline more than 10 degrees.