Is this pillow good for side sleepers?

Yes. It is a firm pillow with a foam core, which suits side and back sleepers who need support under the neck.

Will it really not go flat?

The foam core helps it hold shape far better than all-fiber pillows, but some owners report it softening over time.

Is it hypoallergenic?

Yes. The fill is 100% polyester and described as hypoallergenic.

Does it come in other sizes?

The SertaPedic line includes multiple sizes and support levels; this one is the king size.

Is it machine washable?

The material does not state washing instructions; check the care label on the pillow.

Where is the SertaPedic Won't Go Flat King Pillow cheapest?

At Walmart, for $13.44, as of our latest check.

What do buyers say about the SertaPedic Won't Go Flat King Pillow?

Rated 4.2 out of 5 from 11,084 ratings.

Where can I buy the SertaPedic Won't Go Flat King Pillow?

2 stores we checked sell it, including Walmart, eBay.

SertaPedic Won't Go Flat King Pillow

Best price now

$13.44at WalmartChecked Nov 12

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Walmart

SertaPedic Won't Go Flat King Pillow

Best price now

$13.44at WalmartChecked Nov 12

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $13.44 at Walmart on Nov 12.
Checked at 2 stores.

Our take on the SertaPedic Won't Go Flat King Pillow

The SertaPedic Won't Go Flat is a king-size pillow built around a supportive foam core wrapped in plush polyester fiber fill. The cotton-polyester cover has a 300 thread count, and the fill is hypoallergenic. It is a firm pillow aimed at back and side sleepers who want a pillow that holds its shape through the night. Against all-fiber pillows it keeps its loft better; against adjustable or shredded-foam pillows it offers less customization and less airflow.

Best forBack sleepers who want firm supportSide sleepers needing a tall, shape-holding pillowShoppers replacing pillows that flatten quicklyPeople with allergies who want hypoallergenic fill

Pros

Foam core resists flattening
Firm support suits back and side sleepers
300 thread count cotton-polyester cover
Hypoallergenic polyester fill
King size gives generous width

Cons

Firm feel is too hard for some sleepers
Foam core limits airflow and can sleep warm
Not adjustable for loft or firmness
Some owners report it softens over time

SertaPedic Won't Go Flat King Pillow prices at every store

WalmartNew
In stock
$13.44+ $5.99 shippingChecked Nov 12
Visit Walmart
eBayNew
In stockSold by mega_deals_shop
$44.44Free shippingChecked Nov 11
Visit eBay

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SertaPedic Won't Go Flat King Pillow price history

Lowest price we've seen: $44.44 on Nov 12 at eBay. Tracked across 1 store since Nov 12.

What reviewers say

4.2 / 511,084 ratings

With over 11,000 ratings averaging 4.2, most owners say the pillow keeps its shape and gives firm support. A minority find it too firm or report it losing loft after months of use.

What people mention

FirmnessMixedMany like the firm support, but some sleepers find it too hard.
Shape retentionPraisedOwners say it keeps its loft and resists going flat.
Sleep temperatureCriticisedSome report the foam core sleeps warm.
DurabilityMixedA number of owners say it softens after months of use.
SizePraisedBuyers find the king size generous and well filled.

About the SertaPedic Won't Go Flat King Pillow

The SertaPedic Won't Go Flat King Pillow has a supportive foam core surrounded by plush polyester fiber fill. The cover is a cotton and polyester blend with a 300 thread count.

The pillow is designed to keep its shape for lasting comfort and support. Its firm support suits back and side sleeping positions. The fill is hypoallergenic and made from 100% polyester.

Size: King
Quantity: 1 pillow
Color: White
Cover: Cotton and polyester blend, 300 thread count
Fill: 100% polyester fiber, hypoallergenic
Core: Supportive foam core
Support: Firm
Sleep position: Back and side sleepers

Specifications

bed_size: KingSource
multipack_quantity: 1Source
bed_pillow_size: KingSource
color: WhiteSource
size: KingSource

Questions and answers

Is this pillow good for side sleepers?: Yes. It is a firm pillow with a foam core, which suits side and back sleepers who need support under the neck.
Will it really not go flat?: The foam core helps it hold shape far better than all-fiber pillows, but some owners report it softening over time.
Is it hypoallergenic?: Yes. The fill is 100% polyester and described as hypoallergenic.
What is the cover made of?: A cotton and polyester blend with a 300 thread count.
Does it come in other sizes?: The SertaPedic line includes multiple sizes and support levels; this one is the king size.
Is it machine washable?: The material does not state washing instructions; check the care label on the pillow.
Where is the SertaPedic Won't Go Flat King Pillow cheapest?: At Walmart, for $13.44, as of our latest check.
What do buyers say about the SertaPedic Won't Go Flat King Pillow?: Rated 4.2 out of 5 from 11,084 ratings.
Where can I buy the SertaPedic Won't Go Flat King Pillow?: 2 stores we checked sell it, including Walmart, eBay.