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Serta Perfect Day iSeries Applause Firm Mattress Set


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Expert Review By Rodney

When most people say they want a firm mattress, they mean a mattress like the Serta iSeries Applause Firm. This mattress feels firm, but not like sleeping on the living room floor which makes it ideal for people who want a comfortable mattress with a firm support.

The iSeries Applause features multiple layers of comfort material but the main feature of this mattress is the CoolAction Gel Memory Foam. CoolAction Gel Memory Foam feels much like traditional memory foam without the heat retention. it’s soft on pressure points and promotes restful sleep, but feels a bit more substantial and cooler than traditional memory foam due to gel being blended into the foam. The Duet Coil-in-Coil System transfers little motion from one side of the mattress to the other and feels very supportive. The comfort feels consistent from edge to edge due to the BestEdge Foam Encased Edge Support.

If you like a memory foam mattress with firm support and a bit of padding for comfort, I highly recommend the iSeries Applause Firm.

ComfortQuilt - Top of Mattress
Comfort - Padding Layers
Correct Back Support System
Coil Counts: Box Spring - Foundation
Mattress Dimensions
Made In: USA
The perfect marriage of support and comfort, Serta Perfect Day iSeries mattresses combine Cool Action Gel Memory Foam with the advanced Duet Coil system, an individually wrapped Coil-in-Coil Support System designed to contour to every curve in your body while providing deep down support. Perfect Day iSeries mattresses sleep cooler, provide better back support, and transfer less motion between partners, so you wake up feeling refreshed day after day.

Free In-Home Setup & Delivery
  1. TIMING & DELIVERY: From time of order, receive your mattress in about 2 to 3 weeks anywhere in the continental 48 states and Canada that is road accessible (Canada Details). Remote locations may take an additional 1 to 2 weeks.
  2. SERVICE LEVEL: Your new mattress will be brought into your home, unpacked and set up in your bedroom. (Up to 2 flights of stairs. Any additional arrangements are subject to charge by the delivery agent.)
  3. SCHEDULING DELIVERY: You will be called to arrange the delivery when your mattress has arrived at the local delivery agent, approximately a week after order. Someone must be home to accept delivery.
  4. FURNITURE & BEDDING: Furniture ordered at the same time will ship separately. If you would like us to wait until all the items on your order are ready to ship, please call us at time of order and we can arrange one delivery. Bedding ships separately via UPS.
  5. ADDITIONAL SERVICES: Mattress removal is available free of charge when you select your delivery option online. For your added convenience, these other options are available for a nominal fee by phone only at 1-800-455-1052:
    • Evening delivery
    • Weekend or holiday delivery

Buy with Confidence at US-Mattress
We have partnered with Serta to provide every Perfect Day iSeries mattress purchase with a 120 Day Risk Free Trial! Feel safe and secure in your new purchase knowing you'll receive a full refund if you're unhappy for any reason.

Once your Perfect Day iSeries Sleep System is delivered and set up in your home, sleep on it for a minimum of 30 nights to adjust to a new level of comfort and support. If you are not completely satisfied after the first 30 nights, just give us a call at 1-800-455-1052 and we will arrange for pickup of your iComfort purchase and issue a full refund. This offer is availabe for up to 120 days after you've received your mattress.


Serta Perfect Day iSeries Applause Firm
4.5 Stars based on 2 Review(s)
Alexandria, Virginia
4 Stars
I would recommend this item to a friend.

Light Sleeper
May 8, 2014
I've had the Serta Applause Firm mattress for well over a year. I tried out 2 mattress sets and returned them before I settled in on this one. I would say it's more of a medium firm mattress vs. firm. It's pretty good but I'm not sure what is excellent for me. Recently, I had a leg injury so I purchased a 2" latex mattress topper and have been using it to cradle my injured leg and it makes the bed feel super comfy on the top while providing the support on the bottom. I change in that sometimes I would like it more firm, especially in the hip area and I'm of average weight. Other times I think it's too firm in some areas. Overall it's a pretty decent bed and, since you really need to sleep on it for at least 30 days to truly get used to a new mattress, it's worth looking into and it's of excellent quality. I initially purchased the Applause Plush which was way too soft and exchanged it for the Applause Firm.
Overall firm, no sagging, trusted brand name, excellent customer service
Mattress tends to sink around the hip area after being in the bed for awhile, although there is no sagging in the mattress after leaving it. I would prefer to have it more firm in this area of the mattress.

5 Stars
I would recommend this item to a friend.

April 5, 2014
We heard about this mattress from consumers report and friends have it and they love it. We like this bed and will tell our friends

QUESTION: I now sleep on a Jamison king memory foam. It is between 8 to 9 years old and I am waking up to lot of lower back pain when I try to get up. It takes about 5 or so min to go away. Do you think the Applause is firm enough to help with this back problem Thanks
Linda by L F 7/5/2014
ANSWER: Carol W. In order to get the cooling effect, do you recommend not using a mattress pad I have never slept on a bed without a mattress pad. by carol W 7/12/2014
ANSWER: The short answer is yes. I also have lower back pain, and the Applause seems to be firm enough to prevent morning pain, but resilient enough to let me sleep on my side, as I prefer. by Lawrence B 7/8/2014
ANSWER: While we find this mattress to be very comfortable, it is not extremely firm. I'm sorry I can't answer your question as I have no idea how firm a mattress you need. I would suggest you find a store that carries this particular brand, try lying on it and if you like the fit order it from US Mattress. We were very pleased with their service. by Linda L 7/7/2014
ANSWER: We bought this firm mattress to help alleviate lower back pain as well. Our previous mattress was too soft and we were waking up with back pain each day. This mattress was very firm and did help with the lower back pain. However it was too firm for us and was causing shoulder pain when we slept on our sides. We switched to the plush model which isn't quite as firm and like that one. by Elinor A 7/6/2014
ANSWER: I too suffered from lower back pain but did not associate it with the mattress, however, after sleeping a few days on the new Applause the morning back pain went away. At first I thought it was a coincidence but then I was sleeping elsewhere for about two weeks and the discomfort returned. Once I went back to sleeping on the Applause for a few days the discomfort went away.
I have no way of knowing if this will happen to you but for me this new mattress has been great. by Andres M 7/6/2014
ANSWER: I'm very satisfied. I have the "firm" mattress same as mentioned above} which was recommended by Consumer's Digest. On the mattress itself, there is a tag which states " a box spring is not necessary." However, I use my old box spring anyway. by Ronald E 7/5/2014
QUESTION: What is the coil density of the metal springs in the full firm mattress\ by Richard M 2/21/2014
STAFF ANSWER: Hi Richard, when you say density, are you referring to the thickness of the coils Or are you referring to the density of how many coils are inside the mattress Density is used in the mattress industry for both. by Jamie B 2/21/2014
REPLY: Jamie B, thank you for your answer. I should have referred to the "Gauge" of the coil thickness rather then the density. I know the "Density" of the Full firm Serta Mattress is 767 coils.Usually the "Guage of the wire coils are somewhere between 12 & 14 for firm to Extra firm mattresses. I did not see an Extra Firm full mattress in the i series Applause series. Do they make one. If so would like to know "Guage" of these coils also. Thank you again. by Richard M 2/21/2014
STAFF REPLY: The Applause Firm is the only firm option, there is no extra firm. The coil gauge of the Duet Coil-in-Coil Support System in this mattress is actually 15/16. by Jamie B 2/24/2014
REPLY: Jamie : thank you for all the info on the Serta mattress.I find that 15/16 gauge wire to be the stiffest I have come across so far.Thanks again for the help, have an excellent day. by Richard M 2/24/2014
QUESTION: What sleeping positions do you find comfortable on this mattress? by A Shopper 1/29/2014
ANSWER: On my side. by Dennis P 1/29/2014
ANSWER: My wife and I both sleep on our backs and our sides. This is the most comfortable mattress we have ever had. Nice and firm, yet very soft. Hugs your body in all the right places. We are thrilled with it. by Scott L 1/29/2014
QUESTION: What sleeping positions do you find comfortable on this mattress? by Tim I 1/18/2014
ANSWER: All I most of the time sleep on my side, but have been sleeping on my back and love this matresses. by Jodi T 1/23/2014
ANSWER: I sleep both on the side and on the back, I am very comfortable with either. by Koralai K 1/20/2014
ANSWER: This mattress is great for sleeping on your back but I also sleep on my side and haven't had any problems. by Chris K 1/20/2014
QUESTION: How does this mattress compare to the Bellagio di sogno firm They looks identical by the pictures. Are they in fact nearly the same thing? by Bianca R 12/4/2013
STAFF ANSWER: Hi Bianca, to compare and contrast any mattress with a mattress we sell, give us a call at 1-800-455-1052 and speak to one of mattress experts. by Jamie B 12/5/2013
REPLY: I am hard of hearing and don't use the phone. Can you give a quick summary in writing? by Bianca R 12/5/2013
STAFF REPLY: No problem, I reached out to our mattress expert for you. This is the same mattress as the Bellagio Firm, we call it the Applause Firm. by Jamie B 12/5/2013
REPLY: Ok, thanks. by Bianca R 12/5/2013
QUESTION: Is this mattress good for side sleepers? by A Shopper 3/11/2013
ANSWER: yes, this mattress is great, its firm but not too firm. Both myself and my GF
sleep much better now.

I literrally saved about $1000 vs SLEEPYS also

good luck by richard s 3/31/2013
ANSWER: This is a great mattress for side or stomach sleepers. We have had it for about two weeks and love it! by Phillip S 3/25/2013

Yes, I am a side sleeper and I think the mattress is great. by T R 3/13/2013
ANSWER: I absolutely love this mattress for side sleeping. Soft enough to semi sink in, with no pressure points on your hip and spine. I get a very restful sleep by F E 3/11/2013
QUESTION: Does this bed sleep warm/hot Thanks. by A Shopper 2/6/2013
ANSWER: If you sleep directly on the bed with just a sheet it has a cooling effect which feels really nice. If you use a mattress pad cover it feels about the same temperature level as an ordinary bed. by S C 2/11/2013
ANSWER: The mattress is comfortably cool. No more sweaty back when I wake up. by Paul V 2/10/2013
ANSWER: No, actually. We love the mattress and think its very comfortable. Supposedly it has a layer of cooling gel in the mattress, so maybe that helps. by T R 2/7/2013
ANSWER: Very comfortable. I had a total Memory foam mattress before this. A $2000 mattress and it was hot and developed dents. this mattress has been very cool. well supported. After 6 weeks really satisfied by William B 2/7/2013
ANSWER: The bed does not sleep warm or hot to me. In fact it is very neutral. In fact I have not had any night time sweats since having this bed and I have had it for about 6 weeks now. by Barbara P 2/7/2013
QUESTION: Must you buy the box springs to get the Serta warranty of 15 non-prorated & 10 prorated? by ruth w 10/7/2012
STAFF ANSWER: Hi Ruth, no you don\ have to purchase the serta box spring to enjoy the warranty. You do need to make sure your mattress has adequate support. Serta defines adequate support as a rigid or semi rigid foundation, platform bed, or the floor. by Jamie B 10/8/2012