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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
100 night comfort guarantee

Our Mattress Guarantee Is Simple:

We want you to make your purchase with confidence. And we know that even after making a careful selection, sometimes people need a different level of comfort. If you wish to exchange your mattress, we will make an exchange for you for up to 100 days after delivery. (A difference in lower priced models is non-refundable. An increase in price requires payment for the price difference. Exchange covers same size, limit 1 exchange per customer.) All you have to pay is a $99 processing fee. We will cover all other expenses. Find out more about our guarantees and policies here.

All we ask is that you spend at least a few weeks getting used to your new mattress first, before we process an exchange. Sleeping on a new (or any different) mattress takes a few weeks to get used to, and with that familiarity you can know for sure you're making the right decision.
lowest price guarantee

Lowest Price Guaranteed or your Mattress is Free!

We guarantee that our prices are the lowest you can find anywhere - on or off the web! If you can find a comparable advertised mattress set for a better price somewhere else, simply call or email us with the store information or the website where you found it within 30 days of your purchase. We won't just match their price, we'll match 110% of the difference, or your mattress is free! Price comparison includes all applicable order charges including, but not limited to: product price, comparable service delivery charges, fees and taxes.

We will also price match 100% of the difference on our site within 30 days of purchase. Qualifying decisions on Low Price Guarantee claims rest solely with US-Mattress. Low Price Guarantee does not apply to used, damaged, returned, open box and display merchandise, vendor rollbacks and rebates, special purchases, promotional/doorbuster items, financing offers, clearance/discontinued, membership club or closeout prices.
Serta Perfect Day iSeries Applause Firm
4.5 Stars based on 24 Review(s)
Enumclaw, Washington
5 Stars
I would recommend this item to a friend.

Awesome mattress
October 7, 2014
very comfortable.

Norwalk, CT
3 Stars

Too firm for me
September 25, 2014
I purchased this mattress because of all the great reviews. First night on this mattress if woke up several times during the night experiencing pressure points on my back. I had to add a 2 inch foam rubber topper on top of the mattress to relieve the pressure points. If I had it to do all over again I would get a pillow top mattress. Also, the mattress and box spring end up being HIGH and then adding the 2 inch foam rubber topper on top of the mattress makes the bed too high off the floor for my liking. I would get a low profile box spring with this mattress.
fast delivery and professional set-up
If I had tested the mattress in a store (which I did not) I probably would have realized this mattress was not the right one for me.

Pamela Born
Purvis, Mississippi
5 Stars
I would recommend this item to a friend.

No more sleepless nights!
August 13, 2014
So soft yet so firm! Perfect for bad backs, trouble with numbness and neck aches.
Great prices, great product

Happy Sleeper
5 Stars
I would recommend this item to a friend.

Marital Peace
July 16, 2014
The applause mattress is great. It is good for a person with back issues and good for a marriage when one person gets up a lot at night.
great support; comfortable;
Delivery was hard to schedule!

Carrolltown PA
5 Stars
I would recommend this item to a friend.

Great nights sleep
June 28, 2014
We replaced a mattress that we bought two years ago for twice the money, Now no back pain, sleep through the night. My wife and I both agree that a Serta Perfect Day i Series Applause Firm mattress from US-Mattress is a great investment. Delivery Service was excellent.
Restful sleep, No Back Pain

5 Stars
I would recommend this item to a friend.

Great mattress set
June 16, 2014
Mattress set was wrapped in plastic to protect. Instead of removing plastic wrap before placing on bed frame, the delivery person removed it while on bed frame causing tears on fabric underneath of box spring.
Wife and I love this mattress set.

5 Stars
I would recommend this item to a friend.

I'll be a repeat customer
June 12, 2014
I love the bed. Perfect for a side sleeper. More importantly, I've got nothing but respect for US Mattress. The bed was damaged enroute and replaced. They were pros !!!

3 Stars

Not what I expected
June 12, 2014
I read all the reviews on this mattress and decided to buy it. I'm dissappointed in this mattress since it already is sinking in where both people sleep. The sides of the mattress do not hold up either. If you lay close enough to the side you feel like you will roll off the bed. I so wanted to love this mattress.

South Boston
5 Stars
I would recommend this item to a friend.

Great Mattress, Great site to deal with!
June 3, 2014
We are extremely pleased with our new mattress! We saved considerably and were able to buy only a mattress which the retail stores don't like to do. The delivery gents were very careful and professional. The old mattress was taken away.
Firm does not feel like a board. It is supportive to the back and we wake up refreshed. The mattress also looks great.

Larry C.
Hurst, TX
5 Stars
I would recommend this item to a friend.

Back pain - gone!
May 26, 2014
After many years on another brand, took a shot with this Serta hybrid due to its high rating in Consumer Reports. US Mattress had the absolute best price, and with the free iComfort package - easily $200 elsewhere - the best value as well. One night on the Applause Firm and the back pain both my wife and I felt in the AM was a distant memory.
Firm yet comfortable. Outstanding back support.

Karen Lemons
Stoneville, NC
5 Stars
I would recommend this item to a friend.

Absolute Best
May 22, 2014
This mattress is by far the best I have ever purchased. Your entire body feels encased in comfort when you lie down on it. I feel so much more rested in the morning and I hardly move all night. Well Worth the money!!!!
Comfort, Looks, Stability, Delivery

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.

Middle Tennessee
5 Stars
I would recommend this item to a friend.

Feels so good; don't want to go to sleep!
May 7, 2014
Buying a mattress must be one of the most confusing tasks known to man! After 8-9 months of internet searches, reviews and in-store comparisons, I kept coming back to the Serta Applause Firm. So on April 24, 2014, ordered from US Mattress. It arrived, amazingly, on Sunday May 4! Now, that's fast! It was delivered by NSD Non Stop Delivery. Tom and his assistant could not have been any nicer! He called the day before and arranged a time that was convenient for me. And he arrived right on time. They were very friendly, polite and efficient! Big Kudos to NSD! I have read reviews that mentioned an odor from this mattress. The only odor I have detected is from the wood in the box springs. And it smells fine to me! Now, about the mattress. I am in sleeping Heaven! This mattress is very firm; more a 3 than a 4. But it has enough of the gel/memory foam layer to be SO comfortable! I love the substantial feel of the mattress. It is perfectly flat; no dips, pressure pain, cushioness, sinking, bouncing. It's just there! I can sleep on my stomach, side or back. My husband likes a firm bed and he likes it also. I am a 53 yr. old woman, in the middle of menopause, and I stay cool on this mattress! Yeah! I promise you, last night I couldn't sleep from just enjoying the feel of the mattress; actually smiling! I fall asleep easily and wake up feeling rested. And my back is feeling better too. I love my new bed! Thanks US Mattress!
Supportive, SO comfortable, Cool, No motion transfer, 25 yr warranty, Free shipping, Free bedding, frame, Great customer service!

Kevin G
United States
5 Stars
I would recommend this item to a friend.

King Serta - I Series Applause - is great.
April 22, 2014
I shopped around for various mattresses to purchase from mattress stores to online to all the furniture stores. The main reason I purchased the I-Series Applause was the rating Consumer Reports gave this mattress. Consumer Best Buy for all types of sleep positions. After I received this in my vacation home in Phoenix - I knew I had made the right decision. The bed was nice and firm and was comfortable from the start. US MATTRESS beat everyone's price and the delivery they promised was excellent and right on schedule.
It was delivered when I requested and assembled with care exactly as I wanted. I would think the Mattress stores would be a little concerned about the price and the service I received with my purchase and no doubt in my future purchases.
Had a cracked board - no fault of US MATTRESS and was taken care of immediately. No other CONS !

Burlington, WA
4 Stars
I would recommend this item to a friend.

great set
April 8, 2014
Softer than expected, more medium than firm. Very thick set but lovely to sleep on for a very pregnant side sleeper and a back sleeping male. This was the best priced site I found and though delivery takes a while it is worth the wait. However, the delivery guys left packaging in our front yard =(

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’t 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