Serta Iseries Queen – Today I’m going to take a look at the Serta iComfort Blue 100 mattress. This is just one in the Serta iComfort line. It’s designed as a gentle firm feel. Kind of softer feel. I’m going to put it through a few tests today and give some general recommendations at the end of the review. If you do have any questions I don’t cover during the review or want a personal recommendation, please feel free to leave a note in the comment section below with some information about yourself and some of your sleep preferences. I’m going to begin the review with the construction portion where we discuss some of the materials that are in the mattress. We’re going to begin with the cover. The cover is pretty stretchy so you don’t have to worry about it bunching up when you roll around in the middle of the night or anything like that. It is pretty thick, has a cozy feeling, and really adds to the softness of the mattress.
Now, let’s get a look underneath the cover at the layers of the mattress. Logan: The Serta iComfort Blue 100 is an all-foam mattress made of four different layers that stands about 10 inches. The comfort layer on top is made of gel memory foam. It’s about an inch thick. They’re listed at three-quarters of an inch. Memory foam is known for allowing you to sink in for pressure relief. You can see that slow response to pressure there. It’s going to provide kind of a contouring feeling. One thing to know about memory foam is that it is known for trapping a bit of body heat sometimes. What they’ve done here is included a gel infusion on top. That gel infusion helps to draw heat away from the sleeper to help you sleep a little bit cooler. Below that we have a contouring layer. It’s two more inches of memory foam. Really soft. You combine it with that inch of gel memory foam on top, you’re going to be able to sink really far into the mattress.
It’s going to be great for pressure relief. Really good for side sleepers. We’ll discuss that a little bit more, later. One thing to note is that, again, memory foam can hold a little bit too much body heat. They’ve placed this two-inch layer of memory foam below the gel memory foam to kind of defend against that heat trapping. Below those layers of memory foam you have this inch…It’s kind of hard to see. You have an inch of poly foam, has a quicker response to pressure. It’s a bit firmer. It acts as a bit of a transition layer, help keep you from feeling stuck in the mattress. A little bit of extra bounce here. It transitions you from these really soft memory foam layers on top that allow you to sink into the mattress into the really firm base of the mattress. It’s six inches of high density poly foam. As you can see, it has that really quick response to pressure.
Acts to support the layers of foam on top of the mattress as well as the sleeper and really acts as the foundation of the Blue 100. Logan: Now, that we’ve seen what makes up the Blue 100 mattress, it’s time to get an idea for the feel and firmness of it. I’m pressing into the cover. The first thing you feel is that memory foam on top with the comfort layer and contour layer below it. It’s really soft, lets you push really far in the mattress. You can really feel it contour around your hand. Lying on my back, even with my weight evenly distributed, I do feel myself sinking into the mattress, contouring around my body, filling in the space beneath my lower back. As I try to roll around and change positions, I do feel pretty stuck in the mattress. That slow response to pressure of memory foam does make you feel definitely like you’re more in the mattress than on top of it. Now, switching over to my side. Side sleepers do tend to prefer a softer mattress. Because of that higher weight concentration over a lower surface area, you push further into the mattress.
A lot of times, because that causes you to interact with firmer support layers of the mattress, it can cause issues with pressure points forming at the shoulders and the hips. We’re going to take a closer look at pressure later on in the review, but I did want to point out that with, basically, three inches of really soft memory foam on top of the mattress, that’s really deep for a comfort layer. A contour layer lets you sink really far into the mattress, which is really nice for side sleepers. I’m going to roll onto my stomach. Stomach sleepers do tend to be the opposite of side sleepers, preferring firmer mattresses. For a lot of people, the hips are heavier portions of your body. On a soft mattress such as this, your hips are going to sink a little bit further into the mattress. I do feel like my hips are sinking into the mattress, throwing my spine out of alignment a little bit. In my opinion, the Blue 100 has a firmness in that five to five-and-a-half out of 10 range on the firmness scale.
We tend to think of a medium as a six-and-a-half out of 10. Everyone can feel firmness a little bit differently because of different sizes in weight distribution. For reference, I’m about 5’10’, 190 pounds. If you would like a wider variety of opinions on the firmness of this mattress or a little bit more detailed description on the feel of it, you can check out the written review at Sleepopolis.com. Logan: Instead of just describing the feel of the Blue 100 to you, I wanted to give you a visual representation of where pressure points might form while lying on the mattress. To do that I’ve placed this pressure map up on top. I’m going to lie down in a few different positions. You’re going to see the results next to me ranging from blue for low pressure to red for high pressure. Logan: Just to give you a quick idea of the bounce of the Blue 100 I’ve got this 10-pound steel ball here.
I’m going to drop it. As you can see, there really isn’t that much bounce to this mattress. That thick almost three inches of memory foam on top is really going to dampen how much bounce there is and reaction response time. We’re also going to run a quick motion transfer test while you’re here. Basically, on one side of the mattress where someone might be sleeping I have a seismometer set up. On the other side I’m going to drop this ball from heights of 4, 8 and 12 inches. That’s going to simulate someone getting into and out of bed or rolling around in the middle of the night. The seismometer measures the disturbance that’s transferred across the mattress. Now that we have the results of the motion transfer test up on screen, I can say I was a little surprised. I was expecting there to be a little bit lower disturbance transfer across the mattress.
It is about average. Maybe a little bit above average motion transfer for other foam mattress that I’ve tested. I will say that it does die down really quickly. That’s thanks to the memory foam. There is a little bit of an initial spike, but the memory foam really stops the motion from going on too long. Logan: A lot of people buying a mattress are going to want to know if they’re going to feel like they’re sitting on top of or sinking into bed. To test this I’ve set up the sinkage test in which we use four balls of varying sizes, weights, and densities to simulate different body parts and check to see how far into the mattress they sink. On the Blue 100 we have the six-pound medicine ball set up. It’s filled with sand. It stimulates kind of a lighter body part. It sinks in about an inch-and-a-half. Here we have this 10-pound steel ball. It’s the densest ball used during this test.
It sinks in just over two inches, about two-and-a-quarter inches. Here we have this 50-pound medicine ball. It’s filled with sand. It simulates a heavier portion of your body. Think maybe your shoulders or your hips. Found that it sinks into the mattress four inches. Finally, we have this 100-pound medicine ball filled with sand, if you’re bit bigger. It simulates the center of your body. We found that it sinks into the Blue 100 six inches. Now, when compared to other mattress, the 6- and 10-pound balls definitely sink in more. It’s above average sinkage. I credit that to the fact that it is thick memory foam on top. At those weights, definitely going to feel sinking into the mattress. Like we were talking about before, that memory foam contouring around your body, feel a little stuck. Here for the 50- and 100-pound medicine balls, these sinkages are actually about average for other foam mattresses that I’ve tested.
I do just credit that to the point that they’re sinking directly through the softer foam layers on top. If you think back to the two memory foam layers — that transition layer — that takes up about the top four inches of the mattress. These two are going to push right through those soft layers to get to the high density poly foam. If you are a bit heavier, you’re pushing all the way through those soft layers of foam. You might feel this mattress is a bit firmer than I do. Overall, again, because of the slow response to pressure from the memory foam, definitely going to feel more sunken into the mattress than on top of it. Logan: Just to give you some basic information on the Serta iComfort Blue 100 mattress, there is a 120-day trial period. You do have to try it for at least 30 days, but after that you can exchange it for a different feel or return it. There is a small fee associated with that.
You can learn more about that on Serta’s website, which I will link to in the written review. There’s also a 10-year warranty on this mattress and delivery is free. Some of the reasons I would recommend the Blue 100 mattress is if you are a side sleeper. Felt really comfortable in that position. Didn’t really feel any pressure while I was laying there. Also, that showed to be true on the pressure map portion of the review, which didn’t really show any high pressure when I was lying on my side. I’d also recommend this mattress if you’re looking for that classic contouring feeling. The memory foam really sinking into the mattress. That three inches or so of memory foam on top of the mattress, the slow low response pressure, really give you the feeling of sinking into the mattress, that hug of memory foam. Finally, I’d recommend this mattress if generally you like a soft mattress.
I, personally, generally recommend softer mattresses to side sleepers, but there are a lot of back sleepers that just really like the feeling of a soft mattress. Some of the reasons I would say that the Serta iComfort Blue 100 is probably not for you is if you are a stomach sleeper. Again, it’s a soft mattress. The memory foam lets you sink in. I felt like my hips were sinking in, throwing my back out of line a little bit, which, over the long run, could cause some aches and pains in the lower back. Also, I’d say, if you like the feeling of staying on top of the mattress or you need some bounce, this is not the mattress for you. Those are some general recommendations. If you are looking for a personal recommendation, please feel free to leave a note in the comment section below with some information about yourself and some of your sleep preferences. I’ll be sure to get back to you.
If you’ve just begun your mattress buying search and you’re wondering what you need to know about mattresses to find the perfect mattress for yourself, please Google Sleepopolis and mattress buying guide. It’s going to have a ton of information in there about different types of mattresses. Finally, please subscribe to the Sleepopolis YouTube channel as we’re going to keep putting out more information that’s going to help you get a better night’s sleep. That’s it for the review today. I hope it was helpful. Have a nice day.