Can Infants Sleep on Memory Foam

How to Choose the Right Density For Your Mattress?

Choosing memory foam density is important for your memory foam purchase as it determines just how firm a particular mattress will be. This density can change depending on the model and even the brand, which is why some users end up buying from the same company since the density is easier to figure out. There are just as many complacent customers as there are loyal customers in the memory foam industry. With so many characteristics tied in to the density rating of a memory foam it becomes an important exercise for the customer in determining the best density for their own personal preference. Density also factors in with the weight of the foam, as a cubic foot of 1 pound/ft. density foam equals 1 pound.

Low Density

How to Choose the Right Density For Your MattressLow density memory foam is classified as 2.5-3 pounds, and surprisingly is one of the more preferred densities when comparing the three. This is most likely due to it being the cheapest to manufacture, but also because it sinks the least out of all 3 densities. The sinking effect is one of the reasons buyers new to memory foam are a bit against it, and which is why a lot of users that migrate from coil mattresses prefer a firmer mattress and end up purchasing low density. The combination of cheaper foam and a harder mattress means that it will probably be around for years on end until more people move on to the improving softer solutions. Low density shouldn’t be looked at as cheap foam, but rather a preset that appeals to consumers that prefer a harder sleeping surface.

Medium Density

Can Infants Sleep on Memory FoamAt 4 pounds medium density is used by a lot of brands, even some of the bigger name brands. It is the just right feel that many people have adopted when buying memory foam. The interesting thing about medium density is that if tweaked correctly, like with a gel memory foam solution, it can feel even better and softer than high density without the sinking feeling. Currently more brands use medium density than high density, since the latter is considered a high end feature for the most diehard of the bedroom design and memory foam lovers. When choosing a medium density memory foam mattress, it’s usually just as good as buying a premium name brand if a good company is behind it.

High Density

The high density is mostly hoarded by the big names like Serta and Tempurpedic, and is used in their top of the line items that retails in the thousands. The funny thing about this density is that it may not even be the best for sleeping on, although it does have its benefits. There are conflicting reports citing that medium density from smaller brands are preferred over the high density solutions by the big companies, as they feel better and even contour to the body more evenly. Everyone will have their personal opinion about which density is better, but high density is still considered the gold standard, although at this point it would be in name only.

What’s More Preferred

How to Choose the Right Density For Your MattressBased on the market numbers it is a race between low density and medium density, with high density lagging farther and farther behind. With smaller companies like Brentwood Home and LUCID putting out market leading products using medium density, customers have started to fall in love with the idea that there is a just right feeling rather than a 1 size fits all. Where low density finds its customers would be with coil rebels who want to try the memory foam experience but prefer a firmer mattress than the typical softer high density foam. Both low and medium density foams have exclusive pricing points that separate it from high density, which on average can retails in the thousands. That’s a big gap from medium to high, and a prime reason why many are turning away from the bigger brands.

Price Differences

A cheap Serta or Tempurpedic mattress costs over a grand, even from an old collection. That price will more or less stay the same, and deals are rarely offered even on old product. A top of the line low or medium density memory foam almost always retails for under a grand, with many of the top of the line models retailing even lower than half that price. High density memory foam very rarely sees price drops, while the other types fluctuate wildly in some cases, offering the ideal sale here and there.


Can Infants Sleep on Memory FoamTechnically speaking, a high density memory foam is built to have a longer average lifespan than the lower densities, due to the construction. It will remain comfortable each and every day like it was fresh out of the box for years. True, the lower in density the memory foam mattress is the better chance of it breaking down sooner, but with 20-25 year warranties being offered on all products of all densities it becomes a moot point. A light density memory foam mattress that breaks down sooner than a higher density is not going to be any worse for wear if it is under a 25 year warranty to begin with.


Buyers who want the most health benefits and contouring need to seek the higher densities, preferably medium or high. The reason is that the high densities allow the customer to sink into the mattress so that it matches all of their vital and sore points, something that a firm mattress is not able to do fully. With a high density mattress customers will get the ultimate level of satisfaction with bad joints and fully restorative sleep. A counter to that is to get a medium density gel memory foam that can do the same thing, but once again for a cheaper price. Even with that, the high density will still have an edge when it comes to contouring to the body, but keep in mind that not everyone wants to sink into their mattress at night.


The lower the density, the less benefits buyers will get from motion isolation. The higher density almost completely eliminates disturbance from your partner’s movement on the other side of the bed. This is a feature that can’t be countered with other memory foam densities, and a major edge for the big name brands. If you have a partner that moves a lot when they sleep, this may be a concern even with the lower densities having some motion isolation, even if it isn’t the best.


Loyalty is going to be earned when it comes to memory foam densities, simply because it can be a task when moving from one company to another. The easiest way to test what you’re compatible with is to climb into a bed from different competitors and take note of the densities of each one. If you see a consistency as a buyer, then that is what you’ll have to go by when ordering online. A lot of the memory foam makers have trial periods which will benefit buyers in the process, and even before the mattress arrives their customer support can be a big help in determining what can be perfect for your situation. Don’t let the density conversation keep you from making a great purchase, as it is a really simple game to play once you get used to it.