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Isocool
Isocool Side Sleeper Pillow Featuring Serene Foam

Isocool Side Sleeper Pillow Featuring Serene Foam

4(43 ratings)

Best price now

$48.30at Macy'sObserved at 4:43 AM

34% under what the other stores charge

Compared across 8 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $48.30 at Macy's (checked Nov 9, 2026).
  • Checked at 8 stores.

Our take on the Isocool Side Sleeper Pillow Featuring Serene Foam

The Isocool Side Sleeper Pillow is a medium-firm memory foam pillow built around Serene foam, a fill that stays soft rather than hardening in cold rooms. Its 5-inch gusset gives side sleepers more height at the edge to fill the gap between shoulder and head, and the 100% cotton cover unzips for machine washing. IsoFresh odor-neutralizing treatment targets the stale smell foam pillows often develop. Against denser memory foam pillows it trades some sink-in support for a softer, cooler-feeling surface, and owners of similar Serene foam pillows report it holds shape well but may be too tall for smaller frames.

Best forSide sleepers who need shoulder-to-head supportSleepers who find memory foam too hot or too firmPeople replacing a pillow that flattens or smellsAdults with pressure points at the neck and shoulder
Pros
  • Serene foam stays soft in cold rooms instead of hardening
  • 5-inch gusset adds height for side sleeping
  • 100% cotton cover is removable and machine-washable
  • IsoFresh treatment fights odor buildup
  • Medium firmness suits a wide range of adults
Cons
  • Too tall and firm for stomach sleepers and small frames
  • Foam core cannot be washed, only the cover
  • Standard size only, no king option
  • May sleep warmer than shredded or latex fills

Isocool Side Sleeper Pillow Featuring Serene Foam prices at every store

  • Macy'sNew

    In stock

    $48.30Observed at 4:43 AM
    Visit Macy's
  • JCPenneyNew

    In stock

    $59.49Observed at 4:43 AM
    Visit JCPenney
  • WalmartNew

    In stock

    $79.00Observed at 4:43 AM
    Visit Walmart
  • Bed Bath & BeyondNew

    Availability unknown

    $66.88Observed at 4:43 AM
    Visit Bed Bath & Beyond
  • WayfairNew

    Availability unknown

    $73.23Observed at 4:43 AM
    Visit Wayfair
  • OverstockNew

    Availability unknown

    $73.49Observed at 4:43 AM
    Visit Overstock
  • eBayNew

    Availability unknownShips from the UK · duties may apply

    $150.10Observed at 4:43 AM
    Visit eBay
  • eBayNew

    Availability unknownSold by sysh6426

    $156.99Observed at 4:43 AM
    Visit eBay

Store links may earn us a commission.

Isocool Side Sleeper Pillow Featuring Serene Foam price history

Lowest price we've seen: $48.30 on Nov 9 at Macy's. Tracked across 8 stores since Nov 9.

What reviewers say

  • 4 / 543 ratings

Ratings average 4 out of 5 across 43 reviews, with buyers mainly praising the support for side sleeping and the washable cotton cover. Complaints center on the pillow being too tall or firm for some sleepers and on the foam core being non-washable.

What people mention
  • SupportPraisedSide sleepers say the gusset height fills the shoulder gap and eases neck pressure.
  • FirmnessMixedSome find the medium feel right, others say it is firmer and taller than expected.
  • CoverPraisedBuyers like the cotton cover and that it zips off for machine washing.
  • OdorPraisedThe IsoFresh treatment is credited with keeping the foam from smelling stale.
  • WashingCriticisedOwners note only the cover is washable and the foam core cannot be cleaned.

Specifications

Firmness
Medium
Size
Standard
Sleep Position
Side sleeper
Cover Material
100% cotton
Cover Color
White
Pillow Type
Memory Foam Pillow
Pillow Subtype
Memory foam

Questions and answers

Is this pillow good for side sleepers?
Yes. The 5-inch gusset and medium-firm Serene foam are designed to fill the gap between shoulder and head. Stomach sleepers and very small frames will likely find it too tall.
How is Serene foam different from regular memory foam?
Serene foam is less temperature-sensitive, so it stays soft in a cold bedroom instead of stiffening. It also rebounds faster and feels less sink-in than dense memory foam.
Can I wash the whole pillow?
No. Only the 100% cotton cover is machine-washable. The foam core should be spot cleaned and aired out.
What size is it?
It is a standard-size pillow at 16.75 by 22.75 inches with a 5-inch gusset. No king size is offered.
Does it help with neck and shoulder pressure?
The medium firmness and gusset shape are meant to reduce pressure at the neck and shoulder for side sleepers. Results depend on your frame and mattress height.
Does it come with a removable cover?
Yes, the white cotton cover is removable and machine-washable.
Where is the Isocool Side Sleeper Pillow Featuring Serene Foam cheapest?
At Macy's, for $48.30, 34% under what the other stores charge, as of our latest check.
What do buyers say about the Isocool Side Sleeper Pillow Featuring Serene Foam?
Rated 4 out of 5 from 43 ratings.
Where can I buy the Isocool Side Sleeper Pillow Featuring Serene Foam?
7 stores we checked sell it, including Macy's, JCPenney, Bed Bath & Beyond, Wayfair, Overstock.

Stores we've priced the Isocool Side Sleeper Pillow Featuring Serene Foam at

  • Bed Bath & Beyond deals and prices
  • JCPenney deals and prices
  • Macy's deals and prices
  • Overstock deals and prices
  • Walmart deals and prices
  • Wayfair deals and prices

More memory foam pillows

  • S
    Sleepy's Deluxe Comfort Cool Pillow Soft King
    Sleepy's Deluxe Comfort Cool Pillow Soft King
  • S
    Sleepy's Deluxe Comfort Cool Pillow Firm Queen
    Sleepy's Deluxe Comfort Cool Pillow Firm Queen
Care Instructions
Cover is machine-washable
Washable
Machine-washable (cover)
With Removable Cover
Yes
Fill Material
Foam, Serene foam
Fill Free Of
Not temperature-sensitive, IsoFresh odor-neutralizing technology
Color
White
Material
Foam, Serene Foam
Shape
Gusset
Length
22.75 in
Pillow Dimensions
16.75x22.75 in
Width
16.75 in
Thickness
5 in
Pillow Count
1
Medical Condition Use
Reducing pressure
Age Group
ADULT
Typical Users
Side sleepers, Adults
Gender
UNISEX