Cot β The Bed That Grows with Your Baby
Is your baby outgrowing the crib, but not quite ready for a big kid bed? A cot bed is the perfect in-between solutionβdesigned for safety, comfort, and long-term value. Whether you’re furnishing a nursery or planning ahead for toddlerhood, this guide will walk you through everything you need to know about cot bed sizes, features, pros and cons, and how to shop wisely.

π Cot Bed Dimensions
| Region | Cot Bed Mattress Size | Frame Size (approx.) |
|---|---|---|
| UK & Europe | 27.5″ Γ 55″ (70 Γ 140 cm) | 75β77 cm Γ 144β147 cm |
| Australia | 27.5″ Γ 55″ (70 Γ 140 cm) | Similar to UK sizing |
| US | Not common (cribs used instead) |
πΆ Who are cots best for?
Babies and Toddlers (approx. 6 months to 5 years old).
Parents looking for a longer-term sleep solution beyond the crib.
Families with limited space, who want to avoid buying multiple beds in early childhood.
β Pros of cot bed
π οΈConvertible Design:
Transforms from a baby cot to a toddler bed.
πΈCost-Effective:
One bed from infancy to around age 5.
β
Safe and Secure:
High sides protect infants, while low height helps toddlers.
π¨Stylish Options:
Modern, classic, and themed designs available.
πStandard Mattress Size (in some markets):
Easier to find bedding in the UK and Australia.
β Cons of cot bed
πΊπΈNot Widely Used in the U.S.:
Most American parents use a crib, then switch to a junior bed or twin bed.
πCan Be Bulky: Slightly larger than a standard crib.
π¨Some Assembly Required: Particularly with convertible models.
ποΈMattress May Need Replacing:
Especially if used heavily from infant through toddler stages.
π Room space needed
Recommended Space: At least 6.5 ft Γ 5 ft (2 m Γ 1.5 m) to allow for clearance and movement.
Works well in nurseries, shared rooms, or compact bedrooms.
π°οΈ History & Fun Facts
Evolved from traditional cribs:
The cot bed became popular in the UK and Europe as a transitional sleep solution.
βCotβ vs βCribβ:
In the UK, βcotβ refers to what Americans call a βcrib.β A βcot bedβ is essentially a convertible crib-toddler bed combo, but often a bit larger.
Popular in eco-conscious circles:
Due to reduced waste and fewer purchases, cot beds are often favored by sustainability-minded parents.
Some models extend further:
A few luxury or Scandinavian designs convert into full junior beds or sofas.
π Cot Bed Shopping Guide
π§© What to Look For
- Convertible Feature: Can the sides be removed or the bed extended?
- Adjustable Mattress Heights: Ideal for newborns and older babies.
- Build Quality: Solid wood or high-quality MDF preferred.
- Finish and Materials: Non-toxic, BPA-free, GREENGUARD-certified options.
- Slat Spacing and Standards: Ensure it meets BS EN 716 (UK) or AS/NZS 2172 (Australia).
π·οΈ Mattress Tips
- Size: Standard cot bed mattresses are 70 Γ 140 cm.
- Firmness: Babies need a firm mattress for safety; toddlers may prefer something slightly softer.
- Breathability: Look for vented or dual-sided designs.
ποΈ Where to Shop
- UK: John Lewis, Mamas & Papas, IKEA, Mothercare (if available)
- Australia: Baby Bunting, Mocka, Boori, IKEA
- Online: Amazon UK, Wayfair, or eco-brands like SnΓΌz or Stokke
π§ Pro Tips
π Measure Your Room First:
Cot beds are larger than cribs.
π Choose a Style That Ages Well:
Avoid overly babyish themes if you want it to last 4β5 years.
π οΈ Check Conversion Kits:
Some cot beds need separate kits for toddler conversion.
π§½ Easy-to-Clean Materials:
Accidents happenβwater-resistant mattresses and washable covers are essential.
π± Go Sustainable:
Look for FSC-certified wood and organic bedding options.