How long can you use a Moses basket mattress?
Short answer: Typically for as long as your baby uses the crib or basket. Always go by the age, weight and development limits in the instructions for your model.
Product limits vary, so check the instructions and the product page.
- Measure the basket or crib base. A snug fit with no gaps matters most.
- Firm, flat and waterproof.
- Replace it if it sags, tears or gets water-damaged.
What the guidance says
- Use a firm, flat, waterproof mattress in good condition, with no raised or cushioned edges, that fits the cot or Moses basket with no gaps.
- The Lullaby Trust recommends a new mattress for each baby where possible. A second-hand one should have a 100% waterproof cover, no rips, tears or water damage, no sagging, a good fit and a fire-resistant label.
- Mattresses: look for BS 7177:2008+A1:2011, and BS EN 16890:2017+A1:2021 for cot, travel cot and crib mattresses.
Related questions
What is a Moses basket mattress?
A slim mattress made to fit a crib or Moses basket exactly.
Shop at Baby Kingdom
Browse crib & moses basket mattresses
- Tutti Bambini CoZee Coir Fibre Mattress
- Ickle Bubba Mini Rocker Crib Mattress Complete
- Ickle Bubba Drift Gliding Crib Mattress Complete
- Tutti Bambini CoZee Polyester Fibre Mattress
Check each product page for its exact dimensions, mattress size, age and weight limits and safety standards.
More advice
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Sources
- The Lullaby Trust: Baby mattresses and bedding (accessed 2026-10-21)
General information only, not medical advice. Always follow your product's instructions. If you are worried about your baby, contact your GP, health visitor or 111. In an emergency, call 999.