Queen Ashley Sierra Sleep Manhattan Design District 15 Inch Firm Pillow Top Bed in a Box

Queen Ashley Sierra Sleep Manhattan Design District 15 Inch Firm Pillow Top Bed in a Box

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Queen Ashley Sierra Sleep Manhattan Design District 15 Inch Firm Pillow Top Bed in a Box
Queen Ashley Sierra Sleep Manhattan Design District 15 Inch Firm Pillow Top Bed in a Box

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Expert Review

My Take on The Ashley Sleep Manhattan Design District Firm Pillow Top

by Jed Harrington

Top of the line comfort materials, a solid coil system, convenient delivery, the Ashley Sierra Sleep Manhattan Design District Firm Pillow Top has it all. If you like a firm, yet comfortable feel, this is the way to go.

Firm, Yet Forgiving

With a comfort scale rating of 4 out of 10 (10 is the softest) this mattress has a firm, yet very comfortable overall feel. A near perfect blend of contouring and support, this mattress should work out great for most back and stomach sleepers.

Individualized Support System

The 8 inch power packed coil system uses individually wrapped coils that contour to your body's unique shape better than traditional tied units, while promoting proper spinal allignment for outstanding support. It's great for light sleepers because it reduces motion transfer when movement occurs, and it's adjustable base friendly!

Four Way Stretch Fabric

The Four Way Stretch Fabric feels luxurious to the touch and contours well.

Pure Latex

My favorite part about the Manhattan Design District is the layer of latex. Latex is one of the best comfort materials in the industry and has a lot going for it. Outstanding pressure relief to combat tossing and turning. Superior durability, anti-microbial and anti-dustmite properties, and the fact that it pushes back against the body for additional support. Latex really does it all.

CertiPUR-US Certified

All Ashley Sleep foams are independently tested and certified to meet or exceed the higest quality standards.

One of The Best Firm Pillow Tops We Have

Ashley hit a homerun with this model in my opinion. The comfort, the support, and the value is really tough to beat. Plus, it ships conveniently via UPS or FedEx, which means extremely easy delivery.


Comfort This describes how a mattress feels. The Comfort Scale rating is based on how the cushioning materials conform to the body's shape. The higher the number the softer the mattress.

Quilt - Top of Mattress This is the outside cover on the top of the mattress. It covers and protects the comfort and support layers inside.

  • Four Way Stretch Fabric
  • 1 oz High Loft Pillow Fiber
  • .6 oz Cotton Fiber
  • 1.5" High Density Quilt Foam

Comfort - Padding Layers This provides a cushioning layer between you and the support system in the bed. Different kinds of padding will provide different levels of comfort.

  • 2" Pure Luxury Firm Latex
  • 3" High Density Luxury Firm Body Foam

Correct Back Support System This is a general term used to describe how a mattress distributes and stabilizes body weight and maintains proper spinal alignment. Different materials provide different levels of support.

  • 720 Power Packed 15 Gauge Wrapped Coil
  • Coil Gauge: 15
  • Ashley Edge

Box Spring - Foundation (optional)

Warranty This tells you what kind of warranty you have and how long it will last. A typical warranty lasts about 10 years.


  • MATT-929024, FDN-929645


SizeCoil Count

Works With All Bed Types

Box Spring
Box Spring
Traditional Frames
Traditional Frames
Adjustable Bases
Adjustable Bases

Your mattress purchase is fully compatible with all modern support systems, including adjustable base, platform bed, box spring/foundation, even the floor!

Why Buy from US-Mattress
Xsensor Overview

We test and measure body pressure on each mattress using sophisticated technology. We then provide you a personal recommendation.

Learn More »
Comfort Depth Overview

See how far you'll sink into our mattresses - see how they'll feel. With our Comfort Depth measurements you'll know how a mattress will feel.

Learn More »

Delivery Info

Free Contactless Delivery

Putting the customer first has always been our top priority. Now it's even more important to make sure we're doing everything to keep you and the delivery personnel safe. Here are some of the steps we're taking:

  1. Contactless Delivery: Your mattress order ships FREE via UPS/FedEx ground.
  2. All Mattresses are delivered in a sealed bag or box.
  3. We've enhanced cleaning and sanitizing of all facilities and trucks.

Additional Delivery Details

  1. TIMING: You'll receive your mattress in about 2 to 3 weeks anywhere in the continental 48 states that's road accessible.
  2. FURNITURE & BEDDING: Furniture & bedding deliver separately.
  3. WEEKEND OR EVENING DELIVERY: May be available for a nominal fee. Order by phone at 1-800-455-1052.
Let Us Help You
Pick the Right


  • Sleep cooler through the night with DualCool Technology
  • Feel supported with 900 Series Pocketed Coils
  • Consistent comfort with the BeautyEdge Foam Encased Edge