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Baby & Nursery · Mistakes to Avoid

Cots & Cot Beds: Mistakes to Avoid When Buying

By the Nest & Yard editorial teamUpdated 2026-08-095 min read

Our pick: the Obaby Bantam Space Saver Cot with Adjustable Base, White — the best Cots & Cot Beds we tested, from £115.00.

Bringing a new baby home is an incredibly exciting time, and ensuring their sleep space is safe and comfortable is naturally a top priority. When choosing a cot or cot bed, it’s easy to get caught up in the features and styles available, but some common mistakes can lead to disappointment – particularly when it comes to sizing and unexpected costs. We've rounded up key areas to watch out for, from getting the right dimensions for your room to considering essential accessories like mattress protectors and bedding, perhaps including options like a waterproof protector or a travel cot.

See the full range in Cots & Cot Beds.

Currently unavailable

Pros

  • Brushed cotton top feels soft against baby’s skin
  • Waterproof polyurethane backing protects the mattress
  • Fitted design stays securely in place all night

Cons

  • White finish shows staining more visibly than darker colours
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My Babiie Lightweight Travel Cot with Carry Bag, Grey Elephants

#2 Pick

My Babiie Lightweight Travel Cot with Carry Bag, Grey Elephants
Rated 4.4 out of 5 stars (1,419)
  • Polyester Fabric
  • 1 year

Currently unavailable

Pros

  • Lightweight fold-flat design with carry bag for travel
  • Includes a padded, breathable mattress
  • Quick pop-up assembly with no tools needed

Cons

  • Fabric sides mean less insulation than a solid wood cot
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Currently unavailable

Pros

  • Zip-down mesh windows for easy nighttime access
  • 6 height settings to line up with most bed heights
  • Comes with a breathable mattress included

Cons

  • 9kg weight limit means an earlier transition to a standalone cot
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Obaby Bantam Space Saver Cot with Adjustable Base, White
Editor's Choice

#4 Pick

Obaby Bantam Space Saver Cot with Adjustable Base, White
Rated 4.5 out of 5 stars (459)
  • Solid Wood
  • 1 year

£115.00

Pros

  • Compact footprint suits smaller nurseries and box rooms
  • 2 adjustable mattress base heights
  • Solid wood frame from an established UK nursery brand

Cons

  • Mattress sold separately
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FAQ

I’m worried about the cot taking up too much space in my nursery – what should I consider?

Before purchasing, meticulously measure your room's dimensions, including doorways and furniture. Ensure there’s enough clear floor space for safe movement around the cot and ideally, a small walkway.

Some cots have lots of fancy features like rocking or music – do I really need them?

Evaluate your child's individual needs; many babies don’t require rocking or built-in sounds. Focus on core safety features like stability and low sides before paying extra for unused functionalities.

I’ve seen some cots advertised as ‘convertible’ – what does that actually mean?

A convertible cot typically transforms into a toddler bed or sofa bed, so check the specifications carefully to ensure it meets your long-term requirements and intended use.

Should I factor in the cost of bedding when choosing a cot bed?

Bedding costs can significantly add up – budget around £50 - £150 initially for a basic mattress, sheets, and breathable bumpers to ensure optimal comfort and safety.

I’m confused about mesh sides on cots – are they always necessary?

Mesh sides offer excellent ventilation, particularly in warmer months, but aren't essential if you plan to use the cot with duvets or heavier bedding. Consider your climate and baby's needs.

What’s the minimum height I should look for on a cot side?

Regulations state that cot sides must be at least 20cm high, but opting for higher sides provides extra safety against accidental falls, especially with younger babies.

Are there specific materials that are better for cots than others?

Look for cots constructed from solid wood (pine or beech) as they’re generally more stable and durable. Avoid cots made primarily of composite or plastic materials.

I've read about ‘running costs’ – what does this actually refer to when buying a cot?

‘Running costs’ relate to the additional expenses like mattress toppers, bedding sets, and potentially accessories such as teething rails – factor these into your overall budget.

How important is it to choose a cot with a fixed base?

A fixed base prevents rocking or movement, crucial for baby's sleep safety and stability. Ensure the base adjusts to accommodate mattress depth.

What should I do before assembling the cot?

Carefully unpack all components and thoroughly check against the parts list in the instructions. Assemble on a protected surface to avoid scratching the finish of the wood.

In depth

Measuring your room is the absolute first step when considering any cot or cot bed, yet it’s astonishing how many people skip this vital stage entirely. It's tempting to focus solely on the aesthetics of the cot itself – the colour, the fabric, perhaps a particularly clever storage solution – but without understanding the available space, you risk purchasing a beautifully designed item that simply won’t fit. Take accurate measurements of your room, paying particular attention to length, width, and height. Don't just measure the floor area; factor in the space needed for furniture around the cot, ideally leaving at least 60cm – 90cm between the cot edge and any walls or freestanding furniture. Consider the *overall* dimensions of the cot bed, including the mattress depth, as many models have deeper mattresses than you might initially expect. It’s worth noting that cots with a raised side rail will naturally require more floor space than those with a low-lying base, so be sure to factor this into your calculations. If you're unsure, use a measuring tape and draw out the dimensions of your room on paper – even a simple sketch can help visualize how the cot will fit within the space.

Many consumers are drawn in by cots marketed as having ‘multi-functionality’ – transforming into a toddler bed, changing tables that fold away, or integrated storage units. While these features can be appealing, particularly for smaller homes, it's crucial to assess whether you’ll actually *use* them. The changing table attachment, for example, might collect dust and rarely be employed once your baby is rolling around, while the toddler conversion could add significant expense without necessarily extending the cot’s lifespan. Before committing to a model with numerous extra features, honestly evaluate how frequently you anticipate needing them. It's entirely possible to purchase a simpler, more affordable cot that will meet your needs perfectly and avoid paying for functionalities you won’t utilise. Think about what is truly essential for your baby’s first few months – a safe sleeping space and a comfortable mattress – and prioritise those elements over bells and whistles.

Beyond the initial purchase price, consider the ongoing running costs associated with owning a cot bed. Mattress replacements are a recurring expense; most mattresses will need replacing around 4-7 years depending on usage and care. Factor this into your budget alongside bedding, sheets, bumpers (which are generally discouraged by health professionals), and potentially additional accessories like teething rings or nightlights. Some cots come with a basic mattress included, but for optimal comfort and hygiene, it’s advisable to purchase a separate, certified hypoallergenic one – these can vary significantly in price. Similarly, think about the cost of cleaning supplies – you'll inevitably need wipes, sprays, and perhaps even a specialised cot cleaner, especially if your baby is prone to spills. A small investment upfront in quality bedding will pay dividends in terms of hygiene and comfort over time.

Don’t be swayed solely by headline specifications like ‘adjustable headboard’ or ‘breathable mesh sides.’ While these features might sound desirable, they often represent marginal improvements that won't significantly impact your baby’s sleep or safety. For example, a fully adjustable headboard may prove cumbersome to adjust frequently and could potentially pose a tipping hazard if not secured correctly. Similarly, whilst breathable mesh can aid ventilation, it doesn't negate the importance of ensuring adequate room temperature in the nursery. Focus instead on core features such as stability, robust construction, and safety certifications – look for cots that meet or exceed current UK safety standards (BS EN 16779). Prioritise a cot with a sturdy base and secure fixing mechanisms to prevent tipping, regardless of any additional features it may have.

Material choices are another area where many shoppers make mistakes. While plush fabrics might seem inviting, they can harbour dust mites and allergens, which isn't ideal for a baby’s sensitive skin. Opting for breathable cotton or linen is generally a safer bet, as these materials allow air to circulate and reduce the risk of overheating. Consider the ease of cleaning when making your choice – removable, machine-washable covers are essential for maintaining hygiene. Also, be mindful of potential chemical treatments used in fabric manufacturing; look for certifications like OEKO-TEX Standard 100, which indicates that the fabrics have been tested for harmful substances. Finally, think about the long-term durability of the materials – a cot made from robust wood is likely to last longer than one constructed from flimsy plastic.

Furthermore, it’s easy to fall into the trap of focusing on the cot itself and neglecting the importance of a safe sleep environment. A sturdy cot is only part of the equation; you'll also need a firm, flat mattress that meets current safety standards and a breathable fitted sheet. Avoid using soft bedding or pillows in the cot, as these can increase the risk of suffocation. Consider investing in a room thermometer to ensure the temperature remains within a safe range (18-20°C) and utilising blackout curtains or blinds to create a dark, sleep-conducive environment. A well-ventilated nursery is also crucial – open a window briefly each day to allow fresh air to circulate. Remember that creating a safe sleep space goes beyond the cot itself; it’s about establishing healthy sleep habits and ensuring your baby's comfort and security.

The Nest & Yard editorial team

Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.

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