Is Memory Foam Depth Important?
Buying a memory foam mattress requires you to do a little homework beforehand. Depth relates to the thickness of the memory foam. Choosing the correct thickness for you will be dependent on your sleeping position, your mattress condition and your weight. It is advised that the more weight placed on the mattress then the thicker the memory foam should be.
Memory foam mattresses can be anywhere from 6 to 13 inches (15 to 33cm) deep. This appears to be quite thick and to the untrained eye, the thicker the memory foam the more comfort. This is right and wrong. The first thing to know is that the majority of memory foam mattresses on the market are not entirely made of memory foam. This isn't a scam though, if the whole mattress was memory foam then it would just be too soft and you would end up sinking too deeply into the product.
The construction of a memory foam mattress
There are a small range of memory foam mattresses which are entirely made of memory foam but they are few and far between and usually have a low thickness to keep you from sinking into them too deeply. Memory foam products are temperature sensitive which allow the material to mould to fit around your body but there are a few different types to look at.
These mattresses are known for being warmer than other mattress as they work alongside the heat from your body, but don' t be turned off by this. Gel memory foam is a more breathable option as it provides good air circulation and keeps you cooler while you sleep.
Memory foam mattresses comprise of around 2 to 4 layers of foam. The base is made from a dense foam such as reflex foam which acts as the support. Layers in between the base and top could vary depending on what you are searching for, it could be extra memory foam or an airflow foam to aid air circulation. The top layer will be memory foam and this is the thickness that matters.
When you are looking at memory foam mattresses, try to look past the entire thickness of the mattress and focus on the actual thickness of the memory foam layer. This layer can vary anywhere from 1 inch to 6 or higher in some mattresses. Keeping the thickness in this range will cater to most needs. A thickness of 6 inches will be too spongey and you may find yourself sinking too deeply into the product. The optimum thickness is around 3 to 4 inches, this will give you a high level of comfort and support.
Your mattress condition
This is key to understand as you don't want to purchase a mattress topper if it isn' t going to benefit you in the long run. If your mattress has seen better days and has lumps and bumps then a memory foam topper is not going to solve this problem. You will probably end up feeling like the princess and the pea. Adding layers onto a problem area will end up highlighting the area and make it feel worse. A new mattress is probably the easiest solution for you and then you can place a topper onto the mattress.
Your sleeping position
Sleeping on a firmer mattress can be comfortable if you are someone who tends to vary sleep positions but for those who prefer to sleep on their sides then this can be quite uncomfortable. Waking up with stiff shoulders and hips when you should be waking up energized. This is because a firm mattress is not suitable for side sleepers in the same way that a soft mattress isn' t suitable for people who sleep on their stomach.
When you sleep on your stomach you are spreading your body weight but with memory foam you want to avoid sinking face first. A thickness of about 2 inches for a mattress topper or top layer of memory foam is most suitable as this will allow the product to mould to fit and support your body. As a side or back sleeper, you will want that sinking feeling. Choosing a thickness of 3 inches will release any pressure from your shoulders and hips and provide a softer surface to sleep on.