The nurse is preparing a presentation for new parents and this week's topic is infant sleep. What information should the nurse plan to include? (Select all that apply.)

Infants should be placed on their bellies to sleep.

Infants spend most of time in a light sleep state.

Most infants sleep through the night by 2-4 months.

Moving and grimacing while asleep, typically occur while infants sleep, and are not a cause for concern.

Firmly rolled blankets should be placed along the edge of the crib mattress to prevent head injuries.