Cot & Cot Bed Mattresses

Find The Size That Fits Your Cot

A cot bed mattress should match the internal length and width of your cot so there are minimal gaps at the sides. The fit of a baby cot mattress within the cot frame is very important, as it ensures that the cot and mattress combination is safe to use together. When shopping for a cot, the product information will generally specify the correct mattress dimensions you require. Additionally, the packaging and the assembly instructions that the cot comes with will also state the recommended mattress size.

A cot bed mattress that fits neatly keeps movement stable and prevents rolling gaps. Before choosing a mattress, measure the internal space of your cot and confirm the size notes listed on the product page. If you are using bed cots with mattress already included, the sizing is usually matched for you, making setup faster.

For families who travel between homes or spend nights away, a travel cot mattress sized correctly for your portable cot helps your baby sleep more naturally in different environments. It can be stored easily and brought out whenever needed.

Support And Comfort Basics

A firm sleep surface is important for providing the baby with a safe sleep environment that minimises the risk of SIDS and suffocation. The cot mattress should support the baby's shoulders, hips and legs without dipping. Make sure the sleep area is kept clear, with only the essential bedding items. Adding unnecessary items such as toys or pillows to the cot increases the risk of suffocation and should be avoided.

A stable cot mattress supports growing joints and helps babies shift into different sleeping positions without sinking. For bedding, many families choose breathable cotton sets from the quilt cover set collection. These keep the sleep area light while staying easy to wash.

Some parents use a travel cot with mattress option for naps in different rooms of the home. This keeps routines consistent whether the sleep happens upstairs, in the living area, or during a visit to family.

Safety You Can Trust

Infant sleep surfaces used with a cot mattress are designed to comply with BS EN 16890:2017., and clear product notes help you set up with confidence. Always follow the mattress height and cot setting in your manual so the sleep space feels safe for every nap and night.

Stable settings and firm sides help the mattress remain level. Keep the frame at the correct height for your baby's stage so they can sleep safely and comfortably. If you rotate between rooms or layouts, a mattress for travel cot helps maintain the same firmness and feel wherever sleep happens.

Make Changes Quick And Quiet

Sheets that fit well save time at night, and you can match sizes easily in Cot & Cot Bed Fitted Sheets. Keep spare sets close by in simple baskets, and a small unit from Nursery Storage helps you reach what you need in the Baby Changing area without turning on bright lights.

Soft fitted sheets from the cot bed fitted sheets range stay secure during movement and make quick changes easier. Families often keep a second set folded inside the cot drawer or changing area so everything is within reach.

Clear pathways, calm lighting, and small storage baskets help you manage night time needs without waking your baby fully.

Comparing Different Baby Cot Mattress Options

• Fibre-filled cot mattresses: we have a range of fibre-filled cot mattresses, handmade with different fibre-fill options that create a firm and supportive sleep surface that also features hypo-allergenic properties. The material allows for good airflow in bed cots with a mattress, while the internal waterproof membrane protects the core.
• Pocket Spring and Fibre Hybrid mattresses: this cot mattress combines the support of a pocket spring mattress with the added support of an extra fibre-filled layer, allowing for improved airflow and comfort.

Different materials suit different family routines. A firmer cot mattress may benefit newborns, while a hybrid option can offer extra comfort for older babies. Families who travel often appreciate how a travel cot mattress offers consistency when sleeping away from home.

Breathability That Supports Restful Sleep

A well-made kids mattress needs to do more than feel soft. It also needs to help fresh air move through the surface so children don't overheat at night. Breathable quilting and structured layers work together to release warm air and allow cooler air to circulate naturally. This makes bedtime more comfortable, especially in homes where temperatures change between seasons.

Many families find that airflow helps reduce night-time wake-ups because the sleep surface stays more consistent in feel. A breathable kids bed mattress also supports children who move a lot during sleep by keeping the warmth level balanced whether they sleep on their back, side, or tummy.

When choosing a kids mattress single or kids double mattress, it helps to look for materials that are gentle on sensitive skin. Smooth covers, soft quilting, and steady airflow all contribute to a more settled night. These small details make a big difference as your child grows and their sleep patterns develop.

Choosing the Right Firmness for Growing Bodies

Children grow fast, and their mattress needs to support those changes. The firmness level of a kids mattress plays a major role in comfort, posture alignment, and long-term support. Medium-firm options are usually the most balanced because they keep the spine in a healthy position without sinking too deeply or feeling rigid.

Younger children often benefit from a steadier surface because their bones and muscles are still developing. A stable kids single mattress or a wider kids double mattress helps distribute weight evenly, which reduces morning aches and encourages natural movement through the night.

As children get older, they may prefer a slightly softer feel, but the mattress should still remain supportive across the entire surface. This is where pocket springs and reinforced edges help maintain consistent comfort. With the right firmness, a kids mattress becomes a stable base for quality sleep, healthy growth, and a smoother bedtime routine.

Materials And Daily Care

The cot mattress options we range use materials that promote breathability and airflow, but they can still be affected by overly moist conditions. To better protect your cot mattress from mould growth, make sure to keep the nursery well ventilated and occasionally air out the mattress. Also consider using a mattress protector to protect the mattress from any spills or leaks. To promote even wear across the surface, it is also best to occasionally rotate the mattress.

Families often rotate mattresses every few weeks to keep the core even. Ventilation helps the structure remain fresh, and breathable protectors reduce dampness after night time spills.

Room Planning Without The Guesswork

Place the cot where the air feels fresh and the light is soft so the cot mattress feels welcoming at bedtime. Keep a chair nearby for soothing, and keep night items in one place so your hands can reach them while your baby stays settled.

Calm surroundings help bedtime run smoothly. Keep unnecessary items out of the cot, use soft light, and keep pathways clear so everything feels safe and predictable.

Delivery, Help, And Support

Delivery is made to your front door, with typical processing taking 1-3 business days before dispatch. Delivery typically occurs 7 to 10 business days after the item ships from the warehouse. It is best to check delivery timeframes and expectations for your address.

Boori does not offer in-house assembly, and the team can recommend experienced third-party assemblers for furniture if you want help. Weekday support can assist with parts or delivery questions for items that sit near your cot mattress.

Warranties And Product Guidance

Warranty time frames vary by category, ranging from 1 to 5 years, as listed on product pages. Registering eligible items can extend coverage for many timber pieces in your nursery plan. For any setup questions, you can contact the team on weekdays, and stores can provide general guidance on weekends, so your cot mattress is set up in a clear, simple plan.

Quick Buy Guide

Small, clear checks make choosing easy and help the first night run smoothly.

• Correct Size: Measure the internal length and width of your cot, then match them to the listing so the cot mattress fits the frame without gaps.
• Right Depth: Check the depth in the product notes so the top sits at the safe level for your cot setting and your reach.
• Sheet Fit: Select fitted sheets in the same size range to ensure the corners stay secure after washing and drying.
• Easy Clean: Add a breathable protector and keep one spare ready so night swaps are fast and quiet.
• Storage Plan: Place spare bedding in one basket and nappies in another, so you can easily find what you need in low light.

See In Person or Plan from Home

If you're looking to buy a cot mattress near me, check out the website for a range of supportive and hypo-allergenic options. We unfortunately do not have a showroom or store where the mattresses can be seen and touched, but they all feature a firm sleep surface, in line with recommendations.

FAQs