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How to choose the best mattress for your child — firmness, size by age, materials and safety, plus where to test twin, twin XL and full mattresses in Los Angeles.
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Choosing a mattress for your child isn't just a smaller version of buying your own, kids sleep differently, grow fast, and (let's be honest) spill things. The right kids' mattress supports a growing spine, holds up to jumping and accidents, and lasts long enough to be worth the money. This guide from the team at LA Mattress Store covers exactly what to look for, the best size and firmness by age, and how to shop smart across Los Angeles.
Four things matter more for a child's bed than for an adult's:
Size depends on age, room size, and how long you want the bed to last:
Not sure how a size fits the room? Our complete mattress buying guide walks through sizing and fit.
Supportive and breathable with a bit of bounce, these handle active kids well and sleep cool, a real plus in warm Los Angeles bedrooms. Hybrids add a foam comfort layer for a softer surface without losing support.
Contouring and quiet, with good motion isolation (handy for shared rooms). Choose a medium-firm density and a breathable cover so it doesn't sleep hot.
Naturally firm, durable, and made with certified materials, a great fit for parents prioritizing low-chemical construction. It also resists sagging, so it lasts through years of growth.
Move a toddler from a crib to a twin once they're climbing out (often between 18 months and 3 years) and a guardrail is in place. After that, upgrade when your child outgrows the length, complains of discomfort, or the mattress shows visible sagging or impressions. A quality kids' mattress should last several years, if it's bottoming out sooner, it's time.
It's worth letting your child lie down on a few options, comfort is personal, even for kids. At LA Mattress Store you can test twin, twin XL, and full mattresses in person at any of our five LA showrooms (Koreatown, West LA, La Brea, Studio City, and Glendale), with expert help matching support to your child's age and sleep style. Every order over $499 includes free next-day white-glove delivery across Los Angeles and our 120-night comfort exchange, so if the fit isn't right, you can swap it.
Medium-firm to firm is best for most kids. Growing bodies need even support to keep the spine aligned, and a firmer surface resists sagging and holds up to active sleepers. Very soft mattresses generally aren't recommended for young children.
A twin is the standard first big-kid bed and fits bunk beds; a twin XL adds length for taller kids; a full lasts into the teen years if the room has space. Match the size to your child's height and how long you want the bed to last.
Yes, when you choose a CertiPUR-US-certified foam (tested for low emissions) in a medium-firm density with a breathable cover. Pair it with a waterproof protector to manage spills and allergens.
A quality kids' mattress typically lasts several years. Replace it sooner if your child outgrows the length, it sags or develops body impressions, or your child starts sleeping poorly or waking sore.
It's strongly recommended. A breathable waterproof protector guards against spills and accidents, blocks dust mites and allergens, and helps preserve the manufacturer's warranty.
Ready to find the right fit? Shop kids' mattresses (twin & twin XL) or take our 2-minute sleep quiz to narrow it down.
Explore how a firmness label may feel, then find mattresses to try.
Use the firmness finderArrange a bed and furniture using your own room measurements.
Open the room plannerSee firmness, motion and comfort details for two mattresses together.
Compare by feelStart with a mattress type that suits how you sleep, then compare the feel in person.
Prices for Queen · Choose options for other sizes
Est. $124.84/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $749.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $158.17/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $949.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $146.50/month for 6 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 6 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 6-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $879.00 for one selected item by 6 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $91.63/month for 24 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 24 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 24-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $2,199.00 for one selected item by 24 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest works
Est. $92.42/month for 12 months
Item-price payoff target · excludes taxes and fees.
Synchrony · No interest if paid in full within 12 months. Subject to credit approval.
Interest is charged from the purchase date if not paid in full in time. Minimum monthly payments are required and may not repay the balance in time.
This item price meets the 12-month deferred-interest threshold. We use the longest confirmed period available at this price. Avoiding interest requires paying the promotional balance in full before the deadline. Lender fees can affect total cost; this selection does not establish the lowest total borrowing cost.
This illustration divides the displayed price of $1,109.00 for one selected item by 12 months, rounding up to the next cent. It is not the lender’s required payment or billing schedule. Check the promotional deadline on your statement and pay the full promotional balance before it ends.
Taxes, delivery, recycling charges and any lender promotional fees are excluded. Fees may add to the total borrowing cost. Additional discounts can change plan eligibility and the amount financed. Confirm the final purchase amount and applicable terms with the store before arranging financing.
Credit approval, applicable account terms and purchase eligibility apply.
How Synchrony deferred interest worksBuying guides and sleep advice, no email signup required.
