Joybuy Insights

Buying a Cot: Safety Features, Dimensions and Suitable Models for Every Sleeping Situation

A cot doesn’t just need to fit into your bedroom or nursery. What really matters is a suitable sleeping surface, secure fixing and a period of use that matches your child’s developmental stage. If you focus only on looks or extra features, you can easily overlook important details.

Common Pitfalls When Buying a Cot

1. Height Adjustment Without Proper Alignment

A cot with adjustable height is only practical if the sleeping height can actually be matched to your bed. Different bed frames, divan beds or thick mattresses can make this difficult. So, check the following:

  • Which height settings are available?
  • What centimetre range can the sleeping surface be adjusted within?
  • Is an extension set needed for certain types of bed?
  • Is a secure connection with straps provided?

With a bedside crib, the attachment to the adult bed must always be carried out according to the instructions. Castors alone are not a substitute for a secure fixing.

2. Using the Cot Beyond Its Age Limit

A bedside crib is generally intended for the first stage of life. Once a child can pull themselves up, sit up or kneel, a model may have reached its intended use limit. A cot with bars and a larger sleeping surface is designed for longer use, but must still be matched to the child’s age, developmental stage and the manufacturer’s instructions.

So, don’t just look at a general age recommendation; also pay attention to specific usage guidelines. A 3-in-1 cot can offer several functions, but in every configuration it remains bound by the relevant safety requirements.

3. Confusing Mattress Size with Cot Size

The external dimensions of a cot are not the same as the required mattress size. A cot with mattress can simplify your choice, but you should still check the stated size. For a cot bed 70 x 140 cm, you need a mattress with exactly this recommended size. For the smaller bedside crib in the range below, the sleeping surface is 45 x 90 cm.

A wrongly sized mattress can create unwanted gaps. Therefore, only use the size specified for the cot in question.

These Parameters Should Be Decided Before You Buy

Safety Standard and Construction

With a bedside crib that states compliance with EN 1130:2019, the marking should be verifiable in the product details. This standard covers requirements for bedside cribs and cots. However, it does not replace correct assembly and regular checks.

Important construction features include:

  • lockable castors on a mobile cot,
  • sturdy side panels and robust connections,
  • included safety straps for attaching to the adult bed,
  • a suitable bed guard appropriate for the intended age,
  • regular checks of screws, straps and locks.

With a bed guard for a cot, the mattress height also comes into play. A guard rail must not be used with a mattress that exceeds the stated maximum height.

Sleeping Surface and Duration of Use

The dimensions should suit your planned sleeping arrangement:

  • 45 x 90 cm: compact sleeping surface for a bedside crib in the first stage of life.
  • 70 x 140 cm: larger sleeping surface for a growing cot bed.
  • Bed guard: depends on the cot construction, mattress height and fixing system.

A larger cot needs more space, but can be used for longer. With a convertible model, it should be clearly described how the side panels or toddler access bars are changed.

Cleaning, Assembly and Everyday Use

Removable covers that can be washed according to the care instructions make regular cleaning easier. For wooden surfaces, a damp cloth is often sufficient; abrasive cleaning products can damage the surface.

A fold-down bed guard is particularly useful when adults need easier access to the child, or when the child later needs to get in and out independently. However, before buying, you must check that the frame, slatted base and mattress are compatible with the fixing system.

Best for: Budget-conscious beginners
Foldable Bed Rail Swing Down Baby Bed Guard Rail-White

Foldable Bed Rail Swing Down Baby Bed Guard Rail-White

Why this product fits the profile: This bed guard is ideal for families who want to add a flexibly mounted safety rail to an existing bed. It is designed for various bed types and can be folded down.

How this product avoids the pitfall

The adjustable straps and buckle address the common uncertainty around fixing. Before use, compatibility with your specific bed must be checked.

Key benefits & strengths

Foldable design, visible mesh fabric, removable and washable cover, plus a steel frame with T-shaped feet.

Best for: Buyers with high quality expectations
roba Bedside & Bedside Crib Safe Asleep 3 in 1

roba Bedside & Bedside Crib Safe Asleep 3 in 1

Why this product fits the profile: For parents looking for a complete bedside crib with mattress, height adjustment and fixing straps. The sleeping surface measures 45 x 90 cm.

How this product avoids the pitfall

The details state seven height settings between 22.4 and 44.6 cm, as well as the EN 1130:2019 standard. According to the product information, use ends at around 6–12 months, or earlier if the child pulls themselves up.

Key benefits & strengths

Mattress included, washable cover up to 60 °C, mesh insert, four lockable castors and later use as a sofa.

Best for: Special uses & heavy users
roba Kombi Crib 70 x 140

roba Kombi Crib 70 x 140

Why this product fits the profile: This growing cot is aimed at families who want as few furniture changes as possible, from the first sleeping stage through to a junior bed.

How this product avoids the pitfall

The fixed mattress size of 70 x 140 cm prevents any confusion over choice. Three height settings and removable toddler access bars cover different developmental stages.

Key benefits & strengths

Convertible to a junior bed, three height positions, three removable bars and stated use from birth to around seven years.

Best for: Parents with older toddlers
roba Bed Guard 90 cm Made of Wood

roba Bed Guard 90 cm Made of Wood

Why this product fits the profile: This bed guard is intended for children from around 18 months up to approximately five years and can be added to an existing bed without the need for drilling.

How this product avoids the pitfall

The product details limit the mattress height to 18 cm and state a bar spacing of 6 cm. The included Velcro strap must be securely fastened before each use.

Key benefits & strengths

Solid wood, 38 cm height, 87.5 cm width and tool-free attachment to the slatted base using the included Velcro strap.

Looking for more options?

We have put together a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations in force in the EU.

Checklist Before You Order

  • Does the mattress size match the sleeping surface exactly?
  • Is the stated age and weight limit suitable for your child?
  • Can the cot be securely attached to the adult bed or slatted base?
  • Are the castors, straps and locks easy to check regularly?
  • Is the cover removable and washable according to the care instructions?
  • Are all parts present and free from damage?
  • Does the mattress height match the relevant bed guard?

Frequently Asked Questions About Cots

How long can a baby sleep in a bedside crib?

That depends on the model and the child’s development. For the roba bedside cribs mentioned, use is stated as approximately up to 6–12 months. As soon as the child pulls themselves up, sits up or kneels, the crib should no longer be used as a bedside crib.

What size is sensible for a cot?

For the first stage of life, compact sizes such as 45 x 90 cm are common. A cot bed 70 x 140 cm offers more space and, with a suitable design, can be converted into a junior bed. The mattress size specified by the manufacturer is always the decisive factor.

Is a bed guard without drilling safe?

A bed guard can be fitted without drilling if the intended fixing system is correctly matched to the bed. Before each use, the fit, Velcro strap or straps should be checked. If connections are loose, parts are damaged or the mattress is too high, the guard must not be used.