You may want to put some thought into the things that determine the thickness of topper you buy because it will make all the difference in the world in your comfort, the life of your topper and the many benefits of owning and using the best memory foam mattress topper.
Visco elastic foam is temperature sensitive so you want to consider that it will become a bit softer after you’ve been lying on it for a while.
Memory foam also comes in different densities and that determines the amount of support you get from it.
When NASA originally developed this foam, it wasn’t for mattresses or sleeping, it was for seating inside a space capsule. The astronauts were sitting on it vs laying on it so the density was different.
With today’s memory foam, a topper, also called a pad or pads, should be around 4 lb. density for the best results.
A 3″ memory foam mattress topper with a 4 lb. density would be best suited for anyone weighing up to 200 lbs. or so.
You don’t want to bottom out of the foam and be sleeping on your old underlying mattress so you need at least 3″ of foam for this.
Someone who is in the 90 to 160 lb range might get by with a 2″ mattress topper and anyone over 200 to 300 lbs. would want to look at a 4″ topper to be able to sleep comfortably without hitting bottom.
When you are shopping around keep in mind that there are different foams and the foam poured in the U.S.A. is best because it’s not going to contain the toxins that many foreign manufacturers use to make their foam cheaper.
If you buy a topper made with foreign foam, you will most likely be unhappy with a pungent odor that won’t readily go away.
My friend had a mattress store and tried out a sample topper he got from a manufacturer in China. It stunk up the whole store and was still stinking when he threw it into the dumpster two weeks later.
The smell isn’t the only thing that’s objectionable with foreign foams.
That smell is caused by toxic chemicals that are used by foreign manufacturers and is not going to be very friendly to your health, wouldn’t you agree?
Also, be aware that the size of the topper can be much less than a topper or mattress made to standard measurements.
Be sure to look on the packaging to see if the actual dimensions are mentioned.
Just because it says king size doesn’t mean it’s 76″ x 80″ which is the recognized size of a king mattress.
Many toppers are manufactured to dimensions as much as 8″ less in width and height than standard.
This cuts your sleeping surface down quite a bit and defeats the purpose of paying for a certain size mattress but only being able to sleep on part of it.
Keeping all this in mind when shopping for your 3″ memory foam mattress topper will help your chances of getting a good night’s sleep.