How to Clean a Children's Mattress: Step-by-Step Guide
Cleaning a children's mattress regularly helps remove stains from spills, sweat odours and potential bed bugs while extending its life. Follow this practical guide for safe, effective methods suitable for UK-compliant kids' mattresses that meet BS 7177 fire safety standards.
Why Cleaning Matters for Kids' and Bunk Bed Mattresses
Children sweat more per body weight than adults and often have accidents, leading to moisture buildup in a single or toddler mattress. Bunk beds present extra challenges because the top bunk's guard rail must rise at least 16cm above the mattress surface per BS EN 747; thicker mattresses reduce this clearance, so always check the manufacturer's maximum depth. Regular cleaning prevents mould, dust mites and odours that can affect sleep. For bunk beds, opt for lighter mattresses that are easier to lift.
Before starting, vacuum both sides monthly using the upholstery tool. This removes surface dust without chemicals. Always work in a well-ventilated room and test any solution on an inconspicuous corner first.
Materials and Tools Checklist
Gather these before you begin:
- Handheld vacuum with upholstery and crevice attachments
- White cloths or microfibre towels (at least four)
- Enzyme-based stain remover safe for fabrics (avoid bleach on memory foam)
- Baking soda (sodium bicarbonate)
- Distilled white vinegar
- Mild dish soap or upholstery cleaner
- Hairdryer or fan for drying
- Optional: steam cleaner with low-heat setting for non-memory-foam types
Decision rule: if the mattress has a removable washable cover, remove and machine-wash it at 40°C separately. Most kids' mattresses do not have fully removable covers, so spot-clean only.
Step-by-Step: Removing Stains from a Kids Mattress
Act quickly on fresh spills. For a typical small double or single mattress:
- Blot excess liquid immediately with a dry white cloth. Press, do not rub.
- Mix 1 teaspoon mild dish soap with 250ml warm water.
- Dampen a cloth with the solution and gently dab the stain from the outside inward.
- Rinse with a cloth dampened in plain water.
- Blot dry with a clean towel then use a hairdryer on cool setting from 30cm away until fully dry.
For set-in stains such as juice or chocolate, apply an enzyme cleaner, leave for 15 minutes, then repeat the blotting process. Never soak the mattress; excess water can damage foam layers or springs.
How to Neutralise Odours in Children's Mattresses
Odours from sweat or urine linger in open-coil or pocket-sprung constructions. Sprinkle a generous layer of baking soda across the entire surface. Leave for at least 8 hours or overnight, then vacuum thoroughly. Repeat if needed.
For stronger smells, lightly mist a solution of equal parts white vinegar and water (test first), allow to sit 5 minutes, blot, then apply baking soda. This combination breaks down acidic compounds. Ensure the mattress is completely dry before remaking the bed; dampness encourages bacteria. Consider a kids mattress with a waterproof barrier for future protection.
Dealing with Bed Bugs on Bunk Bed Mattresses
Bed bugs hide in seams and crevices. First isolate the bunk bed: strip all bedding and wash at 60°C. Vacuum every seam, tuft and edge of the mattress thoroughly; empty the vacuum outside immediately. For confirmed infestations, steam clean at under 100°C on low moisture setting, keeping the steam head 5cm from the surface and moving slowly. Do not use steam on memory foam as it can damage the structure.
After treatment, encase the mattress in a zippered bed-bug-proof cover. Top bunks are not recommended for children under 6, so ensure younger siblings use the bottom bunk with a suitable depth mattress that leaves the required 16cm guard rail clearance. Replace highly infested mattresses rather than risk incomplete treatment. For replacement options see our range of kids memory foam mattresses.
Daily and Monthly Maintenance Routines
Establish these habits:
- Daily: air the room with windows open for 30 minutes while the mattress is uncovered.
- Weekly: flip or rotate the mattress (if not one-sided) to even wear.
- Monthly: vacuum both sides and sprinkle baking soda.
- Every 6 months: inspect seams for wear or pests, especially on bunk beds.
Use a washable mattress protector on every children's mattress. This creates a barrier against spills and is machine-washable, saving the underlying foam or springs. Check the protector label for size compatibility with small single, small double or cot sizes (60x120cm common).
Choosing the Right Replacement Mattress When Needed
If stains or odours persist or the mattress is over 7-8 years old, replacement is more hygienic. Look for models designed for children that meet UK fire regulations. Maxitex Kids Magic Memory Foam Mattress offers contouring support that resists sagging from jumping. Maxitex Kids Premier Sprung Mattress provides good airflow to reduce moisture. For cot or toddler sizes, browse cot mattresses or toddler mattresses.
When buying bunk beds, select designs that allow easy mattress removal such as Aviary Kids Bunk Bed with Storage Drawers & Shelves or check bunk beds that comply with BS EN 747. Pair with a kids pocket sprung mattress for durability in high-use environments.
| Mattress Type | Stain Resistance | Odour Control | Best For |
|---|---|---|---|
| Open coil | Medium | Good airflow helps | Budget bunk beds |
| Pocket sprung | Medium | Excellent | Active children |
| Memory foam | Lower (needs protector) | Fair (use baking soda) | Pressure relief |
Always verify exact specifications on the product page before purchase. A waterproof protector plus monthly vacuuming dramatically reduces cleaning effort.
Our picks for this guide
- Maxitex Kids Magic Memory Foam Mattress – Its contouring surface resists deep staining from spills when paired with a protector and responds well to baking soda odour treatment.
- Maxitex Kids Premier Sprung Mattress – Open airflow in the sprung construction reduces trapped moisture and odours, making routine vacuuming and spot cleaning more effective on bunk beds.
- Aviary Kids Bunk Bed with Storage Drawers & Shelves – Easy-access storage and design simplifies lifting lighter kids mattresses for thorough cleaning while meeting BS EN 747 guard rail requirements.
- Kids' Mattresses – Dedicated children's sizes and constructions are lighter and formulated for frequent cleaning and faster drying after accidents.
Frequently asked questions
Can I put a children's mattress in the washing machine?
No. Full-size kids mattresses will not fit and the agitation damages foam or springs. Only removable covers or small cot mattresses (60x120cm) may be washable; always check the care label. Spot clean or use a protector instead.
How often should I clean a bunk bed mattress?
Vacuum monthly and treat stains immediately. Because top bunks are harder to access and must maintain 16cm guard rail clearance per BS EN 747, choose lighter mattresses and clean the bottom bunk more frequently. Deep clean every six months or after illness.
Does baking soda kill bed bugs?
Baking soda does not kill bed bugs but helps absorb odours and desiccates some insects when combined with thorough vacuuming. For confirmed infestations use steam or professional treatment, then encase the mattress. Prevention with a zip cover is more effective.
What is the best mattress protector for kids with night-time accidents?
Choose a waterproof, breathable protector that fits the exact mattress size. Terry or quilted tops add comfort. Wash weekly at 40-60°C. This protects both memory foam and sprung kids mattresses from repeated liquid exposure.
Can I steam clean a memory foam kids mattress?
Only with extreme caution on the lowest moisture setting. Excessive heat or water can break down memory foam structure. Most manufacturers advise against it. Vacuuming and baking soda are safer for Maxitex Kids Magic Memory Foam types. Check the care instructions.
Related guides
- Kids Mattress Sizes UK: Complete Size Guide for Children's Beds
- Can Children Sleep on an Adult Mattress?
- Best Waterproof Mattress Protectors for Kids and Bunk Beds
- Best Non-Toxic Mattresses for Toddlers and Young Children
- Best Hypoallergenic Mattresses for Kids with Asthma and Allergies
- Best Cooling Mattresses for Hot Sleeping Children in the UK