The rules do not travel

The Lullaby Trust's framing is that the guidance stays the same wherever you are: follow safer sleep guidelines for every sleep, "day and night — just like you would at home". What changes is that the environment is no longer under your control, so the work shifts from following the rules to checking whether the room lets you.

Red Nose Australia makes the same point with a practical note: "Babies are more sensitive to temperature changes and unfamiliar environments, which can impact both safety and sleep quality." Preparation, in other words, does more than anything you can improvise on arrival.

Call ahead, and what to ask

The Lullaby Trust states the problem plainly: "Many hotels and other holiday accommodations provide cots but they don't always follow safer sleep guidelines." Its list of what a cot should have gives you the questions to ask:

A firm, flat, waterproof mattress.
A well-fitting mattress with no gaps between it and the sides of the cot.
No cot bumpers or soft items in the cot.
A rigid, firm base.
No damage to the cot.

For a mattress provided by the accommodation, the Lullaby Trust recommends checking that it is still firm and flat with no rips, tears or sagging; that it has been protected with a waterproof cover; and that it is cleaned after each infant use with fresh bedding provided. It suggests packing antibacterial wipes and possibly your own waterproof cover if you are unsure, and contacting the accommodation manager to ask about their mattress policy. Red Nose gives the same advice for loan cots: check for rips, tears or missing parts and confirm the cot meets national standards before you rely on it.

Travel cots

Travel cot mattresses are much thinner than a conventional cot mattress. The Lullaby Trust says that is acceptable — they "are suitable for a main sleep space as long as they are firm, flat, in good condition and meet British Safety Standards". Two warnings come with that. Do not place folded blankets or a quilt underneath to make it more comfortable. And if you replace the mattress, check the manufacturer's guidance carefully, because some replacements create a gap between the mesh sides and the base.

Red Nose Australia is more conservative on the same product. Portable cots "are designed for occasional or short-term use, such as travel or visiting. They are not intended as a permanent replacement for a standard cot for everyday sleep." Its other rules are firm: use only the mattress supplied with the cot, add no extra mattresses or padding, check the mesh and locking mechanisms before every use, and avoid bedding with exposed elastic. Most portable cots have a weight limit, commonly around 15kg.

If you are weighing the two, the UK position permits a travel cot as a main sleep space and the Australian position treats it as a short-term option. Both agree completely on the mattress: the one it came with, nothing underneath it, nothing extra on top.

Using a pram or carrycot

Sometimes the pram is what you have. The Lullaby Trust allows this conditionally, and the conditions are six questions you must be able to answer yes to: is the pram's sleep space completely flat; is the mattress firm and waterproof with no cushioned or raised edges; can the hood be pulled back; can the apron be removed; does it meet British Safety Standards; and does the manufacturer say it is suitable for overnight sleep. If any answer is no, it is not a sleep space.

One extra caution: the sides of a pram carrycot may trap more heat than a cot, so check your baby's temperature at the chest or back of the neck and adjust layers.

Where not to sleep, wherever you are

The Lullaby Trust's list for time away from home is the same as at home. Not pods, bouncers or swings, because a baby can slump in a way that affects their airway. Not armchairs or sofas. And not car seats: "only use these for transport — they're not designed for sleeping indoors." If your baby falls asleep in the car, that is fine while you are driving, but take them out on arrival and put them on a firm flat surface on their back.

Temperature away from home

This is the part most people underestimate on a hot holiday. The Lullaby Trust's range remains 16 to 20°C, and it acknowledges that "keeping your baby's room between 16 – 20°C can be harder in summer or if you go away somewhere warm". Its suggestions: take a room thermometer, use lighter bedding and fewer layers, open the door and a window if it is safe, keep curtains closed during the day, and use a fan without aiming it at your baby. If the room is still too warm, "in really hot weather, it's fine to have your baby in a short sleeve vest or even just a nappy."

Red Nose's packing advice covers the same ground from the other direction: bring a range of clothing options and sleeping bags with different tog ratings, so you are not stuck with one weight of bag in a room you cannot control. For car travel, it suggests window shades, frequent breaks and offering fluids often, noting that overheating in cars is common on long trips.

Routines, and what actually transfers

Red Nose recommends keeping your baby's sleep schedule as normal as possible, because "familiar sleep cues like routine bedtime rituals can help your baby settle, even in a new place". That is a good argument for building a routine you can perform anywhere. If your bedtime sequence depends on your own bath and your own blackout blind, it will not survive a hotel room.

On comforters, Red Nose is specific and stricter than most travel advice: if your baby is over seven months a familiar soft toy may comfort them, but "let them enjoy it while awake, but remove it from the sleep space at nap or bedtime to reduce suffocation risk".

If you end up bed-sharing away from home

Unfamiliar beds, sofa beds and shared rooms make unplanned co-sleeping more likely. The Lullaby Trust's holiday guidance repeats the safer bed-sharing steps: move adult bedding away, firm flat mattress, lay the baby near the middle of the bed so they cannot roll out or become trapped against the wall, remove a headboard with gaps, and only one infant in the bed with no pets. The same exclusions apply as at home — alcohol, smoking, drowsy medication, prematurity or low birth weight — and never a sofa or armchair, however tired you are.

When to ask

Speak to your GP or health visitor before travelling if your baby was born prematurely, has a medical condition, or if you are travelling somewhere with a very different climate. The Lullaby Trust's baby safety helpline, 0808 802 6869, answers questions about specific set-ups, which is useful if you are looking at an unfamiliar cot and are not sure.

Travel and Sleep Away From Home