Like a car seat, a crib mattress is a baby essential important enough to research — baby’s sleeping place needs to be safe! You can’t go wrong buying one from a highly-reputable company that’s been around for a while — ask a store clerk if you’re not sure which brands are most trusted. Go online and read what other parents say about the mattresses they’ve purchased. Then, visit a few stores and get a feel for the variety of models out there. While you’re at the store, look for mattresses that are firm but also comfortable (read: no coils poking up through the top or foam that’s hard as a rock). Remember: Firmness can help prevent SIDS. In general, all crib mattresses are firm enough for baby if they’re made using steel springs or have a high-density foam core. “Find the balance by squeezing the center of the mattress and ensuring it bounces back into shape,” says Andrea Ostapa, senior marketing and product manager for crib mattresses at Kolcraft Enterprises, Inc.
Though both kinds of mattresses—innerspring and foam—are considered safe, there are major differences in shopping for the two. What to look for: A higher coil count means the coils are closer together, which creates a firmer surface. You can also look for a lower gauge of steel, which means the steel is thicker. Cool feature: The standard cushioning layers of an innerspring mattress are made of PET, polyester recycled from plastic water bottles, which acts as a hypoallergenic cushion, says Ostapa. Upgrade with: Border rods (a steel frame attached to the perimeter of the mattress); corner protectors and steel clips. They’ll all help make the mattress’s core more durable. What to look for: A high-density polyurethane foam core that holds 1.5 pounds per cubic foot. The higher the number of pounds per cubic foot, the heavier the core. The lower the number, the softer the core. “There are also bonded polyester fiber cores that tend to be a lower-cost alternative to foam, but they are not considered a ‘high-density’ foam,” Ostapa says.
Cool feature: Foam mattresses are lightweight; they typically weigh between 8 and 13 pounds. Upgrade with: High-density edges that help protect the sides where a toddler sits. You’ll be changing the bed regularly—sometimes bleary-eyed in the middle of the night—so you should be able to pick up the mattress fairly easily. Any mattress that’s 10 to 20 pounds should be fine for you and baby. Even if you plan on using a sheet saver and crib mattress pad— both smart ideas, since there are bound to be diaper blow-outs— you should also make sure your mattress is waterproof. Having that extra layer of protection means that accidents can’t seep inside the mattress. Your kid is going to spending a lot of time on the mattress, so it makes sense to want safe materials against his or her skin. One certification to look for is GREENGUARD, which measures the chemical emissions from the mattress. If a mattress has been certified, that means an outside laboratory tested it to see whether it poses any air-quality risk to your baby.
Two things to know off the bat: You’ll pay more for an organic mattress, and most crib mattresses aren't actually composed of all-organic material, since many also contain steel and plastics. Still, having organic cushioning or covers gives peace of mind to some parents. When shopping for one, Ostapa says to check that the mattress contains another, firmer material to help keep it in shape (organic cotton cushioning doesn’t bounce back as well as other fibers). Also, organic cotton covers aren’t waterproof, so look for an eco-friendly treatment for extra protection. A high price tag doesn’t necessarily mean better quality; sometimes you’re just paying for extra features that you may not even care about. “Some manufacturers have been making crib mattresses for so long and have conducted so many quality tests that even the lowest-priced mattress is of the highest quality,” Ostapa says. “The lower-priced mattresses will not have as many features, but they certainly are tested for safe use with children.”
Give your little one the best and safest sleeping space with our top cot mattress tips.Cot mattress safetyA crucial part of baby cot safety is choosing the best cot mattress. Here are our tips to make sure your cot mattress measures up. Make sure you choose the right size of mattress. Make sure the mattress is firm and flat, and protected by a waterproof cover Avoid second-hand mattresses where possible. Check any mattress you use conforms to current safety requirements. Mattresses should carry the BSI number BS 1877-10:2011+A1:2012. The mattress should fit the cot with no gaps down the side that are more than 4cm. The Lullaby Trust recommends you buy a new cot mattress for your baby, where possible. If you have a second-hand mattress, whether it's a mattress you've used for one of your other children or one that has been given to you, check the following: That the mattress is in good condition; that it's flat, firm, not soft, fits the cot without any gaps and doesn't sag.
It has been cleaned and dried thoroughly. Check that it was previously used with a waterproof cover. Make sure you use it with a waterproof cover. Check it's free from cracks or tears or holes. Find the best cot bed to use with your cot mattress in our cot bed reviews. Choosing a cot mattressCheck the cot mattress sizeA mattress around 8-10cm thick is enough to support your baby.Mattresses come in two basic sizes to fit the equivalent sizes of cot generally available in the shops. Your cot will specify which type of cot mattress it requires: standard (56x118cm) or continental (60x120cm). If the mattress is the wrong size, your baby could be dangerously trapped in gaps between the cot and the mattress. The gap between the mattress and the cot should be no more than 4cm (1.5 in)If you buy a cot that is smaller or larger than the norm, you can get mattresses specially made to fit your cot.Choose one that's easy to keep cleanTo keep the mattress as hygienic and clean as possible, choose one with a PVC-covering or a removable top panel that you can wash at a reasonably high temperature.
Squeeze for firmness and measure for thicknessSqueeze a selection of mattresses in the shop and choose one that feels firm rather than soft. To compare firmness, squeeze at the edges and at the centre. Your baby needs a mattress that provides good support and won't sag.Look for a cot mattress that is around 10cm thick. Anything thinner won't provide the support your baby needs. Thin foam, in particular, can lose its shape and dent easily.A travel cot mattress should be no more than 10cm thick and you should expect the mattress in a crib or Moses basket to be no more than 5cm thick. These thicknesses are specified in BS 1877:Part 10:1997, the safety regulations that govern cot mattresses.Check out our Best Buy cot beds.Sign up for a £1 Which? trial to access these and our thousands of other independent reviews. Types of cot mattressesFoam mattressesFoam mattresses tend to be the least expensive. The simplest versions are made from a single layer of supportive foam completely covered with a wipe-clean, waterproof PVC cover.
Some foam mattresses have ventilation holes, but these aren't necessary. Generally easy to keep clean. Good value for money. Can provide good support and resistance to denting. Some parents may not like the idea of the basic PVC-covered mattress because of concerns about clamminess. Mattresses with ventilation holes (designed to help keep your baby cool) can be more effort to keep clean if your baby is a dribbler or is often sick, because residue can gather in the holes and mesh. Safe sleeping tips – essential bedtime know-how for parents.Spring-interior cot mattressesThese traditional mattresses have a coiled spring interior with layers of felt and foam padding. They often have a cotton cover on one side and PVC or other wipe-clean material on the other. Many parents like the familiarity of a traditional spring mattress. The wipe-clean side is the recommended surface for your baby to sleep on because of the practical advantages, but you can flip it over onto the cotton side if you prefer – eg, if it's hot and your baby feels clammy.
More expensive than foam mattresses. The cotton side may be preferred for comfort but can be more difficult to keep clean (unless you buy a mattress with a removable panel). Coir or natural fibre cot mattressesThese have a core of coconut fibre with other layers of different materials. The fibres are coated in latex for strength and protection, and the natural fibre filling helps air to circulate through the mattress. These mattresses are available with a wipe-clean covering. One of the firmest types of mattress. Tend to last longer because they hold their shape well, so could be a sensible purchase if you want to use it for more than one child. Less widely available than foam or spring interior. Can be more expensive than the alternatives. Hypoallergenic cot mattressThese have a quilted top layer that can be easily detached from the body of the mattress, so you can wash it at 60°C to kill any dust mites that may cause allergies.Allergy UK has a list of approved mattress covers and bedding on its website.