How to keep an 18-month-old from climbing out of the crib

The first time it happens, it's a shock. You hear a thump, rush in, and find your toddler on the floor, beaming, or crying, or both. Or you see it on the monitor: one leg over the rail, a determined face, and a drop that suddenly looks enormous.

Follow the crib manufacturer's milestone and height limits rather than waiting for another escape. The US Consumer Product Safety Commission safe-sleep guidance emphasizes using an age-appropriate product exactly as directed.

Climbing out of the cot is one of those milestones that turns a parent's stomach. Once it happens, follow the cot manual and move promptly to a permitted, age-appropriate sleep setup rather than relying on deterrents.

Step one: make the room safe today

Before anything else, assume your toddler can and will get out, and make sure that if they do, they land somewhere safe.

• Lower the mattress to its lowest setting.
• Clear the cot of anything your child could stand on, such as large soft toys, pillows or bumpers.
• Move the cot away from windows, blind cords, shelves and furniture your child could climb onto or pull over.
• Anchor furniture like chests of drawers and bookcases to the wall.
• Cover sockets and remove any small objects or hazards from the floor.
• Fit window guards or restrictors if you haven't already.
• Use an approved gate only where its instructions allow; never use a pressure-mounted gate at the top of stairs, and include closed doors and gates in your fire-escape plan.
• Do not add pillows, bumpers, loose bedding or improvised padding in or against the cot.

That way, whatever happens next, a climb won't become an emergency.

Why toddlers climb

Climbing usually starts somewhere between about 18 months and three years. Toddlers are getting taller, stronger and more coordinated. And they're curious, independent and driven to explore.

Some climb because they want you, often at bedtime, during the night, or early in the morning. Some climb because they're bored or not tired enough. And some climb simply because they can, and it's fun.

Around 18 months, climbing can also coincide with the 18-month sleep regression, when separation anxiety and a push for independence make bedtime harder.

Step two: discourage climbing

Use a sleeping bag

Do not use a sleep bag to restrain climbing. Use one only for warmth, within its age and size instructions, and never delay a bed transition once the cot's climbing or height limit has been reached.

Turn the cot around

Do not turn or alter the cot unless its manufacturer explicitly permits that setup; use it exactly as the manual describes.

Respond calmly and boringly

If you see your toddler starting to climb, go in, say a simple phrase like "feet down, it's sleeping time", and lay them back down. Keep your voice calm and flat. A big reaction, even a frightened one, can make climbing more exciting.

Check that your toddler is actually tired

A toddler who isn't sleepy at bedtime has more time and energy to climb. Look at nap timing and length. If the afternoon nap is long or late, bedtime may need to move a little later, or the nap may need to be capped. See how to drop the nap without destroying bedtime.

Look at what's driving it

If your child is climbing out to find you, separation anxiety may be part of it. Extra connection during the day, a predictable bedtime routine, and regular brief check-ins at bedtime often help more than any barrier.

What not to do

• Don't use crib tents or covers. These have been linked to serious injuries and are not recommended.
• Don't tie, strap or wedge your child in, or add anything to the cot to make the sides higher.
• Don't punish climbing. It's a normal developmental behaviour, not misbehaviour.

When is it time for a toddler bed?

Many safety organisations suggest moving a child from a cot to a bed when the cot rail is less than about three-quarters of their height (roughly at chest level when they stand), when they reach around 89cm (35 inches) tall, or when they're climbing out regularly despite your efforts.

That said, many sleep specialists also recommend not rushing the move if you can avoid it, especially before age two to three. A cot gives a toddler a clear, physical boundary. A bed removes it. Some toddlers who are moved to a bed early start getting up again and again, or visiting their parents' room every night. See how to stop your toddler coming into your bed.

So a reasonable approach is:

• Any successful climb? Stop relying on the cot for containment and follow its manual now.
• At or beyond the manual's climbing or height limit? Move to an age-appropriate bed.
• Tall enough that the rail is at chest height? Time to move, regardless.

Making the move to a bed

If it's time, a few things make the transition smoother:

• Keep the bed low. A toddler bed, or a mattress on the floor, means a fall isn't a problem.
• Use a bed guard on the open side if your child is likely to roll out.
• Keep everything else the same. Same room, same routine, same sleeping bag or blanket, same comfort toy.
• Involve your child. Let them choose their sheets or help set up the bed.
• Set clear, simple rules. "We stay in bed until the light turns green" works well with a toddler clock.
• Return calmly. If your child gets out, walk them back with as few words as possible, the same way every time.
• If an approved gate is appropriate, follow its placement and age instructions and preserve a workable fire-escape plan.

Adjustment time varies; keep the bedtime response calm and consistent.

The short version

When your toddler climbs out of the cot, check the manual, move to an age-appropriate sleep setup, and childproof the whole room. Keep furniture anchored, windows and cords secured, and the bedtime response calm. Never add padding, tents or restraints to the cot.

If you'd like a routine built around your toddler's age and current challenges, Lunio builds one in a few minutes.

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