StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Compare

Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley vs SomosBeds Mayfield Plush Mattress

Buy the Sierra Sleep if you want a thick, tall plush bed with a long non-prorated warranty and a large base of owner ratings behind it. Buy the SomosBeds Mayfield if you want a lower-profile plush innerspring with a cool gel foam top and a 100-night trial. The Sierra Sleep is the more substantial build: 12 inches of foam over wrapped coils, a 10-year non-prorated warranty and a 4.9 average from 270 ratings. The Mayfield is thinner at 9.5 inches, has a 7-year limited warranty and only 50 ratings at 4.6, but its gel foam sleeps cooler and the trial lets you test it at home.

  • Choose the Sierra Sleep if you want a tall, supportive plush mattress with a 10-year non-prorated warranty and a long track record of owner ratings.
  • Choose the SomosBeds Mayfield if you want a lower-profile plush innerspring with cooling gel foam and a 100-night home trial.

Prices

  • Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley: $349.99 at Target (last seen Nov 10)
  • SomosBeds Mayfield Plush Mattress: $309.99 at Mattress Warehouse (last seen Nov 10)
  • Difference: the SomosBeds Mayfield Plush Mattress is $40.00 cheaper than the Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley at the latest prices (Nov 10)
Ashley
Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley

Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley

4.9(270 ratings)
$349.99at TargetChecked 15 h ago
See all prices and details
Visit Target
Pros
  • Tall 12-inch build with plush foam over wrapped coils
  • 10-year non-prorated warranty
  • 4.9 average from 270 owner ratings
  • Bed in a box and adjustable base compatible
  • Wrapped coils cut motion transfer for couples
Cons
  • No stated sleep trial
  • No gel or cooling layer named
  • Plush top may be too soft for stomach sleepers
SomosBeds
SomosBeds Mayfield Plush Mattress

SomosBeds Mayfield Plush Mattress

4.6(50 ratings)
$309.99at Mattress WarehouseChecked 15 h ago
See all prices and details
Visit Mattress Warehouse
Pros
  • Cool gel foam quilt layers for a cooler night
  • 100-night trial to test at home
  • Blended organic cotton cover
  • Foam-encased perimeter for edge-to-edge support
  • Targeted at side sleepers
Cons
  • Thinner 9.5-inch profile
  • 7-year limited warranty is shorter
  • Only 50 ratings so far
  • 30-day break-in required before an exchange

What separates them

Sierra Sleep Limited Edition 12 Inch Plush Mattress by AshleySomosBeds Mayfield Plush Mattress
Height and profile12 inches of foam and coil, sits tall9.5 inches, lower profile
Support coreWrapped coils under memory foam comfort layers759 individually encased coils with a high-density fiber base pad
CoolingQuilted knit cover over foam; no gel layer namedCool gel foam quilt layers designed to sleep cooler
Warranty10-year non-prorated7-year limited
Trial periodNo trial stated100 nights, with a 30-day break-in before exchange
Owner feedback4.9 from 270 ratings4.6 from 50 ratings
CoverQuilted stretch knit foam coverBlended organic cotton
DeliveryBed in a box, adjustable base compatibleStandard mattress delivery

Price history

  • Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley: lowest $349.99 on Nov 11 at Target.
  • SomosBeds Mayfield Plush Mattress: lowest $309.99 on Nov 11 at Mattress Warehouse.

Prices at every store

Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley

  • Cloudy MattressNew

    In stockReturn policy

    $429.00Checked Nov 9
    Visit Cloudy Mattress
  • TargetNew

    Availability unknown

    $349.99Free shippingChecked 15 h ago
    Visit Target
All 2 stores and price history →

SomosBeds Mayfield Plush Mattress

  • Mattress WarehouseNew

    In stockReturn policy

    $309.99Checked 15 h ago
    Visit Mattress Warehouse
  • Sleep OutfittersNew

    In stockReturn policy

    $309.99Checked 15 h ago
    Visit Sleep Outfitters
  • Mattress WarehouseNew

    In stock

    $309.99Checked 15 h ago
    Visit Mattress Warehouse
  • Sleep OutfittersNew

    In stock

    $319.99+ $300.00 shippingChecked 15 h ago
    Visit Sleep Outfitters

Also available at

  • SomosBedsCheck price at SomosBeds
All 6 stores and price history →

Specs compared

SpecSierra Sleep Limited Edition 12 Inch Plush Mattress by AshleySomosBeds Mayfield Plush Mattress
Warranty10-year non-prorated warranty7 Year Manufacture's Limited Warranty
SizeTwin XL—
TypeMemory Foam—
ComfortPlush—
Top StyleTight Top—
Coil TypeWrapped Coil—
Width79.5 inch(es) / 201.93 cm—
Height13.5 inch(es) / 34.29 cm—
Depth38 inch(es) / 96.52 cm—
Weight60.21 lb(s) / 27.31 kg—
Comfort Level—Plush
Mattress Height—9.5 INCHES
Show all 20 specsShow fewer specs
SpecSierra Sleep Limited Edition 12 Inch Plush Mattress by AshleySomosBeds Mayfield Plush Mattress
Mattress Type—Innerspring
Sleep Position—Side
Coil System—759 Individually Encased Coil System
Cover Material—Blended Organic Cotton
Comfort Foam—Plush Cool Gel Foam
Comfort Layer—Plush cooling gel foam + comfort foam
Cover—Blended organic cotton
Edge Support—Foam-encased perimeter

What reviewers say

Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley

  • 4.9 / 5270 ratings

Owners rate it very highly, with 270 ratings averaging 4.9 out of 5. The recurring praise is the soft-yet-supported feel and the easy boxed setup; complaints are few and mostly about softness for some sleepers.

What people mention
  • ComfortPraisedOwners describe a soft, plush surface that is comfortable from the first night.
  • SupportPraisedReviewers say the coil core keeps it from feeling like a sinkhole.
  • Motion transferPraisedCouples report less disturbance when one partner moves.
  • SetupPraisedBuyers find the bed-in-a-box delivery easy to set up.

SomosBeds Mayfield Plush Mattress

  • 4.6 / 550 ratings

Owners rate it 4.6 out of 5 across 50 ratings, with comfort and the plush feel drawing the most praise. Complaints center on the softness being too much for some sleepers and on the short warranty.

What people mention
  • ComfortPraisedOwners describe the plush top as soft and supportive for side sleeping.
  • Motion transferPraisedCouples say the encased coils keep movement from carrying across the bed.
  • TemperaturePraisedSleepers report the gel foam and cotton cover feel cooler than all-foam beds.
  • FirmnessMixed

Questions and answers

Which is better for side sleepers?
Both are plush and suited to side sleepers. The Mayfield is explicitly designed for side sleeping and its gel foam runs cooler. The Sierra Sleep gives more depth and contouring from its thicker foam layers.
Which lasts longer?
The Sierra Sleep has the edge on paper: a 10-year non-prorated warranty against the Mayfield's 7-year limited one, plus a taller build with more material. The Mayfield's high-density fiber base pad is meant to add stability.
Is the Mayfield worth stepping up to over the Sierra Sleep?
Only if the trial and cooling matter more to you than warranty length and height. The Sierra Sleep costs more in build terms, but the Mayfield lets you sleep on it for 100 nights before committing.
Does either sleep hot?
The Mayfield is the cooler bet, with cool gel foam in its quilt layers. The Sierra Sleep uses standard foam comfort layers under a knit cover and has no named cooling feature.
Can I use either on an adjustable base?
The Sierra Sleep is listed as adjustable base compatible. The Mayfield's specs do not state adjustable base compatibility, so confirm with the seller before pairing it with one.
How do they compare for couples?
Both use individually wrapped coils to limit motion transfer. The Sierra Sleep has far more owner ratings behind it, while the Mayfield adds a foam-encased perimeter so the edges stay usable.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

More comparisons

  • CoolNest Memory Foam Mattress vs Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley
  • CoolNest Memory Foam Mattress vs SomosBeds Mayfield Plush Mattress
  • Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley vs Ashley Chime Hybrid Mattress 135 x 190 cm
  • SomosBeds Mayfield Plush Mattress vs Ashley Chime Hybrid Mattress 135 x 190 cm

Buying guides that pick them

  • Best soft mattresses under $600
Some back and stomach sleepers find the plush top too soft for their liking.