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4.6 | 546 Reviews

Classic Alden 11.5" Medium Mattress -Twin XL

Classic

Features

  • Breathable Cover A soft, breathable cover helps you rest and wake refreshed
  • 3 Zoned Body Support offers 3 separate zones to provide lower back support for classic comfort
  • This 800-coil density system provides contouring, cradling support and minimizes motion transfer
  • CertiPUR-US® Certified

Quick Specs

  • Brand: SERTA
  • Line: Classic
  • Type: Tight Top
  • Width: 39"
  • Height: 11.5"
  • Depth: 79.5"

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Featuring 3 zones for lower back support, breathable fabrics, and responsive coils for classic comfort-plus upgrades available for cooling pressure relief.

Features

  • Breathable Cover A soft, breathable cover helps you rest and wake refreshed
  • 3 Zoned Body Support offers 3 separate zones to provide lower back support for classic comfort
  • This 800-coil density system provides contouring, cradling support and minimizes motion transfer
  • CertiPUR-US® Certified
  • Designed and Built in USA
  • Adjustable Friendly
  • 10 Year Warranty
  • Your new mattress may initially feel firmer than expected. Please allow up to 60 days to acclimate to your new mattress as it naturally adjusts to contour, comfort, and support you best
  • Medium - Perfect for all sleepers-side, back, stomach or combination sleepers
  • Premium memory foam is temperature-sensitive; it may feel firmer in cooler temperatures and softer in warmer ones. For your preferred comfort, please allow several hours for your memory foam mattress to adjust to the room s temperature
Brand Serta
Manufacturer Name Serta Simmons Bedding LLC
UPC 810150416473
Computed Mattress Size Twin XL
Country of Manufacture USA
Assembled in USA? Yes
Computed Product Type One Sided Mattress
Product Category Mattress
Family Name Classic
SubFamily Name Alden
Mattress Top Type Tight Top
Mattress Type Innerspring
Product Type Mattress
Year of Launch 2024
Dealer Line National Line
Layer 1 Material Fiber Based Layer
Layer 1 Thickness (in) 0.1
Layer 2 Material PillowSoft Aire
Layer 2 Thickness (in) 1
Layer 3 Material PillowSoft Foam
Layer 3 Thickness (in) 0.5
Layer 4 Material 3 Zone Body Support
Layer 4 Thickness (in) 1
Layer 5 Material 800 Edition Custom Support Coil System
Layer 5 Thickness (in) 8
Layer 6 Material Serta Balanced Support
Layer 6 Thickness (in) 1
Product Depth (in) 79.5
Product Height (in) 11.5
Product Width (in) 39
Shipping Depth (in) 79.5
Shipping Height (in) 11.5
Shipping Width (in) 39
Product Weight (lb) 46.59
Shipping Weight (lb) 46.59
Adjustable Base Compatible? Yes
Antimicrobial? No
Breathable Construction? Yes
Coil Count 360
Cooling Technology? No cooling technology
Edge Support? Yes
Foam Infusion? None
Handles Included? No
Hypoallergenic? No
Is Mattress 2 Sided? No
Latex Free? Yes
Low Motion Transfer? Yes
Lumbar Support Yes
Mattress Comfort Level Medium
Mattress Cover Design Geometric
Mattress Cover Stitch Design None
Mattress In A Box? No
Memory Foam? Yes
Moisture-Wicking? Yes
Natural Fibers? No
Pillow Top? No
Primary Foam Type Polyurethane
Product Accent Color Light Blue
Quilted Cover? No
Reinforced Center? No
Side Color Off-White
Top Cover Color Multicolor
Weight Capacity 1000
Zipper Cover Machine Washable? N/A
Zipper Cover? No
Product Warranty Length 10
Does it Ship in a box No

Quick Specs


  • Manufacturer

  • Brand: SERTA
  • Line: Classic

  • Appearance

  • Type: Tight Top

  • Dimensions

  • Width: 39"
  • Height: 11.5"
  • Depth: 79.5"
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Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Mattresses can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new bedding should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

4.6 out of 5

91% of reviewers recommend this product.

5 Stars

New

Natividad P 7/10/2026

Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Good

Mike C 7/9/2026

Very comfortable
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Amazing!

Zachary H 7/8/2026

Feels comfortable and love the colors
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

New Mattress

Mischelle M 7/7/2026

Great mattress for that price
Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Good Sleep

Sylvia C 7/6/2026

I've enjoyed my new mattress.
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Haven't used it yet

Chase M 7/3/2026

Had the same bed for around 7 years, beat up, old, dirty. Got a good deal on this, maybe my back won't feel like an 80 year old geriatric man at 23 years old.
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Nice mattress.

Kathy P 7/2/2026

Only had a few days…. So far, so good.
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Queen bed

Harold C 7/2/2026

Very comfortable!
Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Great mattress

Ben R 7/1/2026

Awesome product!
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Amazing

Alfredo S 7/1/2026

Very comfortable and what I expected in quality
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Mattress Serta morning slumber

Patti G 7/1/2026

Very comfortable
Originally posted on www.serta.com

Yes, I recommend this product

3 Stars

Good quality

Genavieve H 6/29/2026

Very affordable love it
Originally posted on www.serta.com

No, I do not recommend this product

5 Stars

Good value

Randy M 6/29/2026

Great product complete with 9.5" mattress and box springs. We have bought Serra mattresses for years and always pleased with them
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

best bed ever

Carlos L 6/29/2026

its firm and feels so soft
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Great Mattress

Emilia P 6/29/2026

Queen Mattress very comfortable
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Perfect

Mayra G 6/28/2026

The best mattress!
Originally posted on www.serta.com

Yes, I recommend this product

3 Stars

Disappointef

Shirley P 6/28/2026

The queen size is much smaller than the queen size I had before. There are approximately 2- inch spaces on each side between my bed rails. My previous queen size fit more snugly between the rails with only about a 1/4-1/2 inch gap between the mattress sides and rails.
Originally posted on www.serta.com

No, I do not recommend this product

3 Stars

Sides are weak

Aleah C 6/27/2026

The bed itself is supported however the sides are weak and seems it lacks whatever material that goes inside of it personally I think its because it was left standing on its side in extreme heat conditions.
Originally posted on www.serta.com

No, I do not recommend this product

5 Stars

Sa far so good.

Nicole D 6/27/2026

Lightweight, easy to install. Loving the firmness. Looking forward to a great nights sleep
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Medium gel 10"

William L 6/27/2026

Had it one week, overslept 4 times!
Originally posted on www.serta.com

Yes, I recommend this product

3 Stars

Not medium

James W 6/27/2026

This is firm mattress, quite firm, not sure why they call it medium.
Originally posted on www.serta.com

No, I do not recommend this product

5 Stars

Serta morning slumber medium mattress

Janice H 6/24/2026

Mattress Queen Very comfortable
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Queen mattress

Rosemary S 6/23/2026

Very comfortable
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Great

Rafael V 6/23/2026

Comfortable and great quality.
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

So far so good

Beverly M 6/22/2026

Everything great sleep very well.
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Serra king mattress

Sharon D 6/22/2026

Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Mattress

Kathy J 6/21/2026

I really like it
Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Morning Slumber mattress

Edward H 6/21/2026

Too early to tell
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Mattress

Linda G 6/21/2026

Firm and comfortable
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

New medium

Rita A 6/21/2026

Love put new mattress. Coming a person that has back problems, I finally gave on yo purchase a New Mattress and I slept like a baby last night ? ? ?
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Love my new matress!

Erica R 6/20/2026

Super comfy & the right amount of support.
Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Always comfie

Donna B 6/20/2026

Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Luxurious

Mariella W 6/20/2026

Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Too soft

Silvia N 6/20/2026

Great price, however the mattress is too soft. After a few weeks when I get up, it seems like if I can see where I sleep.
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Nice mattress

Angie B 6/19/2026

Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

.

Carlos L 6/19/2026

It is a King, not a Medium.
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Nice mattress

Madeline O 6/19/2026

It's what I was looking for! Perfect firmness
Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Good

Joann P 6/19/2026

The mattress seems good for the price.
Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Great medium firm mattress

Lorena R 6/18/2026

I'm a side sleeper and my husband is a back sleeper. The mattress is perfect for the both of us.
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

New Serta

Will B 6/18/2026

Box and queen mattress
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Good nights sleep

Jerry M 6/17/2026

On sale $100 off price for King size, I had my doubts about the serta morning slumber medium mattress,I had a great night sleep ?
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Sleep Perfectly well

Wanda Y 6/17/2026

This is a perfect sleeper just as it's titled strong quality. That holds up to its shape no matter where and how you lay on it. Very comfortable
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

New mattress!!!!

Branden N 6/16/2026

It's amazing! Soft yet supportive. Strong yet subtle. It's exactly what we need!
Originally posted on www.serta.com

Yes, I recommend this product

1 Stars

Not good

Lora D 6/16/2026

Not as firm as the display in the store
Originally posted on www.serta.com

No, I do not recommend this product

5 Stars

Mattress

Braxton C 6/16/2026

Sleeps fantastic
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Feels like an expensive hotel bed

Danielle V 6/15/2026

Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Great mattress

Sherrick H 6/14/2026

Originally posted on www.serta.com

Yes, I recommend this product

3 Stars

Just Purchased

Mellanie H 6/14/2026

Just purchased this set today so not able to give an honest review as of yet but so far looks to be comfortable and price was quite reasonable
Originally posted on www.serta.com

No, I do not recommend this product

4 Stars

Mattress

Linda B 6/14/2026

Qureen Serta mattress and box spring
Originally posted on www.serta.com

Yes, I recommend this product

4 Stars

Just purchased it

Latrese D 6/14/2026

Originally posted on www.serta.com

Yes, I recommend this product