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Mainstays King Comforter Set vs Mainstays Reversible 11-Piece Bed-in-a-Bag Set

Buy the 3-piece white set if you want a clean, simple bed and already own sheets. Buy the 11-piece black velvet set if you are furnishing a king bed from scratch and want one coordinated look. The 3-piece is a lighter, plainer comforter with a soft prewashed microfiber shell and a reversible face; the 11-piece adds sheets, a bed skirt, pillowcases and a decorative pillow in a heavier-looking velvet finish. Owners rate both well, with the 3-piece slightly ahead on rating and the 11-piece ahead on rating count.

  • Choose the Mainstays 3-Piece King Comforter Set if you want a light all-season comforter in white, already have sheets, and prefer a simple reversible look.
  • Choose the Mainstays 11-Piece Bed-in-a-Bag Set if you are setting up a king bed from scratch and want matching sheets, shams, skirt and a decorative pillow in one black velvet look.

Prices

  • Mainstays King Comforter Set: $19.95 at eBay (checked today)
  • Mainstays Reversible 11-Piece Bed-in-a-Bag Set: $29.72 at Walmart (checked today)
  • Difference: the Mainstays King Comforter Set is $9.77 cheaper than the Mainstays Reversible 11-Piece Bed-in-a-Bag Set today
Mainstays
Mainstays King Comforter Set, All-Season, 3-Piece, White

Mainstays King Comforter Set

Mainstays King Comforter Set, All-Season, 3-Piece, White

4.6(3,550 ratings)
$19.95at eBayChecked 13 h ago
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Pros
  • Soft prewashed microfiber shell
  • Lightweight all-season fill
  • Reversible for two looks
  • Part recycled polyester
  • High rating from many owners
Cons
  • No sheets, skirt or decorative pillow
  • White shows stains and wear
  • Light 95 gsm fill may feel thin in cold rooms
Mainstays
Mainstays Reversible 11-Piece Bed-in-a-Bag Comforter Set with Sheets, Black Velvet, King

Mainstays Reversible 11-Piece Bed-in-a-Bag Set

Mainstays Reversible 11-Piece Bed-in-a-Bag Comforter Set with Sheets, Black Velvet, King

4.5(4,587 ratings)
$29.72at WalmartChecked 13 h ago
See all prices and details
Visit Walmart
Pros
  • Complete bed setup in one set
  • Reversible comforter
  • Matching sheets, skirt and pillowcases
  • Decorative pillow with pintuck detail
  • Most-rated of the two
Cons
  • All polyester, no recycled content
  • Black velvet finish can show lint and pet hair
  • Bulky set to wash and store

What separates them

Mainstays King Comforter SetMainstays Reversible 11-Piece Bed-in-a-Bag Set
Pieces included3: comforter and two king shams11: comforter, shams, sheet set, bed skirt, pillowcases and decorative pillow
Color and finishWhite with embroidered detailBlack Velvet with pintuck and contrast stitching
Shell material55% polyester, 45% recycled polyester microfiber100% polyester
Fill weight95 gsm polyester fill, lightweightPolyester fill, all-season
ReversibleYes, two facesYes, two faces
CareMachine washablePolyester, machine washable
Rating4.6 from 3,550 ratings4.5 from 4,587 ratings
Setup effortNeeds sheets and a skirt bought separatelyOne purchase dresses the whole bed

Price history

  • Mainstays King Comforter Set: lowest $19.95 on Nov 10 at eBay.
  • Mainstays Reversible 11-Piece Bed-in-a-Bag Set: lowest $29.72 on Nov 10 at Walmart.

Prices at every store

Mainstays King Comforter Set

  • WalmartNew

    In stock

    $38.88Free shippingChecked 13 h ago
    Visit Walmart
  • eBayNew

    Availability unknownSold by stacyanne

    $19.95Checked 13 h ago
    Visit eBay
  • ShopNew

    Availability unknownSold by Shop app

    $73.99Checked 13 h ago
    Visit Shop

Also available at

  • WalmartCheck price at Walmart

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All 3 stores and price history →

Mainstays Reversible 11-Piece Bed-in-a-Bag Set

  • WalmartNew

    In stock

    $29.72+ $6.99 shippingChecked 13 h ago
    Visit Walmart
  • eBayNew

    Availability unknownSold by zone-year

    $41.61Checked 13 h ago
    Visit eBay
  • mercari.comNew

    Availability unknown

    $59.00Checked 13 h ago
    Visit mercari.com
  • ShopNew

    Availability unknownSold by Shop app

    $68.99Checked 13 h ago
    Visit Shop

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission.

All 4 stores and price history →

Specs compared

SpecMainstays King Comforter SetMainstays Reversible 11-Piece Bed-in-a-Bag Set
bed_sizeKingKing
colorWhiteBlack
actual_colorWhiteBlack Velvet
Number Of Pieces35 pieces
Material Type55% Polyester/45% Recycled Polyester—
Set SizeFull/Queen, King—
Warmth LevelAll-Season—
Length90.00 in—
Width86.00 in—
Fill MaterialPolyester—
Fill Weight95 gsm—
Care InstructionsMachine washable—
Show all 20 specsShow fewer specs
SpecMainstays King Comforter SetMainstays Reversible 11-Piece Bed-in-a-Bag Set
Set TypeComforter Set—
Age GroupTeens, Adults, Adult to Teen—
AudienceUNISEX—
EmbellishmentEmbroidered—
Construction HighlightsReversible—
Sustainability HighlightsRecycled polyester blend—
size—King
Reversible—Yes

What reviewers say

Mainstays King Comforter Set

  • 4.6 / 53,550 ratings

Owners rate it highly and mostly praise the soft feel, the light weight and the clean white look for the money. Complaints center on thinness and on the fabric being warmer than expected for an all-season comforter.

What people mention
  • Fill weightMixedSome owners find it too thin for cold bedrooms, while others like the light feel.
  • SoftnessPraisedBuyers describe the prewashed microfiber as soft and smooth out of the bag.
  • BreathabilityCriticisedA number of sleepers say the polyester traps heat and feels clammy.
  • LookPraisedOwners like the clean, simple white look and the matching shams.

Mainstays Reversible 11-Piece Bed-in-a-Bag Set

  • 4.5 / 54,587 ratings

With a 4.5 average across thousands of ratings, owners mostly describe the set as an easy way to dress a king bed in one go and like the reversible comforter and coordinated look. Complaints center on the polyester feel and thinness of some pieces.

What people mention
  • CompletenessPraisedOwners like getting comforter, sheets, shams, skirt and pillow in one coordinated set.
  • ReversibilityPraisedThe two-sided comforter lets people change the look without buying another.
  • Fabric feelCriticisedReviewers say the polyester shell and sheets feel less soft and breathable than cotton.
  • ThicknessMixed

Questions and answers

Which is better for a guest room?
The 11-piece set, because it dresses the whole bed at once with sheets, shams, a skirt and a decorative pillow. The 3-piece works if the guest room already has sheets and you want a plain white look.
Which feels softer?
The 3-piece has a prewashed microfiber shell that owners describe as soft and smooth. The 11-piece is 100% polyester with a velvet-look face, which feels denser but less smooth.
Which lasts longer?
Both are polyester and machine washable, so lifespan depends on washing habits. The white 3-piece will show stains and thinning sooner than the black 11-piece, which hides marks better.
Is the 11-piece worth stepping up to?
Yes if you need sheets, a bed skirt and pillowcases anyway, since buying those separately means matching colors yourself. Skip it if you already own king sheets and want a lighter comforter.
Which is warmer?
Both are labeled all-season. The 3-piece has a light 95 gsm fill, so hot sleepers may prefer it; the 11-piece has a denser polyester fill and velvet-look face that feels warmer.
Do both fit a king bed?
Yes, both are king-size sets. The 3-piece comforter measures 90 by 86 inches; check the 11-piece dimensions on the listing before buying if your mattress is deep.

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More comparisons

  • Mainstays King Comforter Set, All-Season, 3-Piece, White vs Bedsure Bedding Set 7 Pieces King
  • Mainstays Reversible 11-Piece Bed-in-a-Bag Comforter Set with Sheets, Black Velvet, King vs Bedsure Bedding Set 7 Pieces King
  • Mainstays King Comforter Set, All-Season, 3-Piece, White vs Sasttie 7 Pieces King Comforter Set, Reversible Bed in a Bag, All Season Bedding Set with Comforter, Flat Sheet, Fitted Sheet, Pillowcases & Shams, Teal & Lake Blue
  • Sasttie 7 Pieces King Comforter Set, Reversible Bed in a Bag, All Season Bedding Set with Comforter, Flat Sheet, Fitted Sheet, Pillowcases & Shams, Teal & Lake Blue vs Mainstays Reversible 11-Piece Bed-in-a-Bag Comforter Set with Sheets, Black Velvet, King

Buying guides that pick them

  • Best king size bedding sets
Some owners find the comforter and sheets thinner than expected; others call the weight fine for year-round use.