Cry It Out Sleep Training: Pros, Cons, and What Science Says
The cry it out method, often called CIO sleep training, is a strategy where parents wait before responding to their baby's cries at bedtime, giving the child a chance to learn self-soothing and independent sleep. Many parents wonder if cry it out is safe and what effects it might have. Research shows that, when used briefly with healthy babies, cry it out does not typically cause lasting harm—but the decision is always personal.
It's normal to feel uncertain about your baby's sleep. Worrying whether you're making the right choice is common, and debates around cry it out can feel especially sensitive. This guide explains what the method involves, when it can be safe, and when it may be better to choose a different approach.
What Is the Cry It Out Method? 💤
Cry it out means parents do not immediately pick up or comfort a crying baby at bedtime, instead allowing the child to settle and fall asleep on their own. This technique is usually introduced from around 4–6 months, when babies are developmentally able to self-soothe for short periods.
How Does Cry It Out Work?
- After putting your baby to bed, wait a few minutes before responding if they cry.
- Gradually increase the waiting time (for example, 3, 5, then 10 minutes).
- You may briefly comfort your baby, but avoid picking them up.
- The goal is for your baby to learn to fall asleep independently.
Why Do Some Experts Recommend Cry It Out? 🧠
Cry it out is based on behavioral psychology: babies learn that falling asleep doesn't always require parental intervention. Self-soothing is an important part of sleep development. Studies show most healthy infants can learn this skill if parents use the method consistently.
Babies naturally wake up several times at night, but not every awakening needs immediate attention. Cry it out can help babies return to sleep more quickly.
Real-Life Examples: What Does Cry It Out Look Like?
- Anna, with her 7-month-old son: After 5 minutes of crying, she gently pats him and steps out. Within days, he falls asleep without tears.
- Ben, with his 6-month-old daughter: He gradually increases wait times and sticks to a consistent routine. After a week, only brief fussing happens at bedtime.
- Kate, with her 8-month-old: Instead of cry it out, she stays quietly in the room until her baby falls asleep—showing that gentler alternatives can work too.
Every family is different, and what works for one may not suit another.
Cry It Out Method: Pros and Cons
Pros ✅
- Faster, independent sleep onset
- Fewer night wakings
- Reduced parental exhaustion
- Babies learn self-soothing skills
Cons ⚠️
- Short-term stress for baby and parent
- Parental anxiety or guilt
- Not all babies respond well
- Not recommended in certain situations (illness, developmental concerns)
Risks and Common Myths
Some worry that cry it out could harm a baby's emotional development or attachment. Current research suggests that, when used briefly and with healthy babies, cry it out does not cause long-term emotional damage. However, prolonged or excessive crying can lead to stress, so moderation is key.
It's a myth that cry it out is ideal for every baby—many families prefer gradual, parent-present sleep training methods.
When Should You Avoid Cry It Out?
- If your baby is sick, teething, or has a fever
- In cases of developmental delays or prematurity
- If the process causes too much stress for parents
- If your family's values do not align with the method
In these cases, consider gentler sleep strategies.
When to See a Doctor
- If your baby's crying is unusually intense, prolonged, or accompanied by symptoms like fever, vomiting, or poor appetite
- If sleep worsens significantly after trying cry it out, or your baby is restless during the day
- If you're unsure or worried about your baby's development
Your pediatrician or health visitor can help you choose the best sleep approach for your child.
Alternatives to Cry It Out 🌙
- Gradual withdrawal: parents move further from the crib each night but remain present
- "No tears" methods: babies learn to sleep without crying, with parental support
- Establishing calming bedtime routines
These techniques can help your baby feel secure while learning to sleep independently.
Supportive Thoughts for Parents 💙
Sleep training is not a competition, and there is no single "right" way. Cry it out is not ideal for every family, but it can help some achieve more restful nights. If you're unsure, remember: loving, consistent presence is always most important. Find more tips and guidance in our app to help you confidently choose what works best for your family.