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Serta Mattress Cascade Range Extra Firm Mattress - Twin XL

Available As Soon As 07/02/26
Not On Display In Showroom
is $829.00 11% Off , was Reg. $929.00
You save: $100.00

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Serta Mattress Cascade Range Extra Firm Mattress - Twin XL large image number 1

Serta Mattress Cascade Range Extra Firm Mattress - Twin XL

is $829.00 11% Off , was Reg. $929.00
You save: $100.00

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 & 120-Night Comfort Guarantee from  $49.99

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Add a Free Box Foundation on Select Mattress Purchases $699+
Free In-Home Delivery in Iowa with Select Qualifying Serta Perfect Sleeper Mattress Purchases $699+
6-Month Financing with Homemakers/NFM Card

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2 Free Cooling Pillows with any Serta Perfect Sleeper purchase of $699+
Serta Mattress Cascade Range Extra Firm Mattress - Twin XL
The Serta Mattress Cascade Range Extra Firm Twin XL delivers hotel-quality sleep with advanced support engineered for your best rest. Its Q4 Support System features 860-density 4-in-1 coils that distribute weight evenly while five zones of alternating firmness cradle your body's natural curves. CoolFeel fabric wicks away heat throughout the night, while a layer of high-density support foam provides the perfect balance of cushioning and support. This extra-firm mattress works seamlessly with adjustable bases, giving you complete control over your sleep position. Whether you prefer firmer support for back sleeping or need targeted pressure relief, the Cascade Range adapts to your needs while maintaining its shape night after night.
  • Material:
39 "
Width
14 "
Height
79.5 "
Depth
59.66
Pounds

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Rated 5 out of 5 by from So comfortable! [This review was collected as part of a promotion.] THIS BED IS SO COMFORTABLE! I didn’t know if I would love an extra firm mattress but it is the most comfortable mattress I have ever slept on. I have been sleeping on this for the last month and my back pain has improved dramatically. The mattress has handles on the sides so it is very easy to lift when tucking a fitted sheet. Highly recommend!
Date published: 2026-06-12
Rated 5 out of 5 by from I LOVE THIS BED. [This review was collected as part of a promotion.] I LOVE THIS BED. This bed is exactly what I needed. The “extra firm” was no joke. It took me a few days to get used to it but it is so comfortable. I’ve been using it for close to a month now and haven’t noticed any sagging in the mattress and I sleep in the same spot every night. Highly recommend if you want a firm and comfortable bed!
Date published: 2026-06-05
Rated 5 out of 5 by from Sleeping better! [This review was collected as part of a promotion.] I had the mattress for about a month now and I slept so much better than my last one. It was time for an upgrade and I am happy! It’s super comfortable and it gives the strong extra firm support that I need. It really stayed true to its “extra firm”. And the durability feels promising so far. And noise? Nonexistent for me. It stays quiet when moving around. The mattress stays coolers than my last one. The cooling and airflow helps keep the heat from building up, which I have noticed. I’m really happy with this mattress. Definitely recommend!
Date published: 2026-05-20
Rated 5 out of 5 by from Extra firm excellent Comfortable for back and low back pain
Date published: 2026-05-18
Rated 5 out of 5 by from Very satisfied [This review was collected as part of a promotion.] The mattress is really hight quality. I feel super comfortable lying on it, no discomfort at all. It supports my back well and doesn’t make any noise when moving around. The delivery service was great too- fast, clear, and very professional
Date published: 2026-05-16
Rated 5 out of 5 by from Firmness for back issues on point [This review was collected as part of a promotion.] Queen size is great. We loved the handle easy to move around. The comfort is really good for anyone with back issues. The firmness is on point and we sleep like babies! No more waking up when the other moves around!!
Date published: 2026-05-05
Rated 5 out of 5 by from Great ! [This review was collected as part of a promotion.] The delivery process was seamless and the mattress size is just as described. After sleeping on it for only two days I can say I have way less back pain already. Not sure if that shows how bad my mattress was or how good this one is. It’s firm and does not bend or crush under any pressure amount as I can tell. Even my pup is loving the new mattress. I would say this is worth the value and maybe skip the mattress in a box trend.
Date published: 2026-05-04
Rated 5 out of 5 by from Must-try extra firm mattress from Serta [This review was collected as part of a promotion.] Great impression on this extra firm mattress from Serta. Very comfortable to sleep on with easy assembly, and I really like the material and design.
Date published: 2026-05-03
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