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The Best Pillowfor side sleepers
Nectar · Pillow review

Nectar Tri-Comfort Cooling Pillow review

Zipper gussets change firmness without handling loose fill, under a cooling cover.

By KevinUpdated 12 min read✓ Research-based · sources cited
Check price on Amazon$$$ · typically $80–130 (standard size)
Research score: 7.4/107.4
Research score

Research scores

Neck support
7.5
Side-sleeper loft
8.0
Pressure relief
7.5
Cooling
7.5
Durability
6.5
Value
6.5

Weighted toward support and loft for side sleepers. How scores work

Key specs

SoftMediumFirm
Fill
Shredded memory foam + microfiber
Cover
Quilted, polyethylene-infused cool-touch cover; sewn on, not removable
Loft
~5 in, zipper-adjustable
Adjustable
Yes
Sizes
Standard (20 x 28 x 6 in), King (20 x 36 x 6 in)
Trial
30 nights
Warranty
1 yr
Care
Spot clean only; cover not removable

Our take

Nectar's Tri-Comfort uses zippered gussets to switch between firmness settings, so you don't have to remove fill. Mattress Clarity names it the best cooling pillow for side sleepers, and Fortune names it best memory foam pillow overall. You can't remove fill, it's spot clean only with a sewn-on cover, and the 1-year warranty is short.

Pros

  • Zipper gussets change firmness without handling loose fill
  • Cooling cover aimed at hot sleepers
  • Fortune's 2026 best memory foam pillow overall
  • Sold and shipped by Amazon

Cons

  • Spot clean only, and the cover doesn't come off
  • Short 30-night trial (Nectar and authorized-retailer orders) and 1-year warranty
  • No fill to remove, so the height range is narrow

Size and loft: what Nectar lists now

Nectar's current page settles the size question: the Standard is 20 by 28 inches and 6 inches tall. In October 2026 Nectar lists the Standard at 20 by 28 by 6 inches (51 x 71 x 15 cm) and 4 lb (1.8 kg), and the King at 20 by 36 by 6 inches (51 x 91 x 15 cm) and 5 lb (2.3 kg)[1]. Earlier listings disagreed with each other; these are the figures Nectar publishes now, and NCOA's testers also list a 6-inch loft[2].

That makes the Standard a slightly odd size. A standard pillow is 20 by 26 inches and a queen is 20 by 30, and Sleep Foundation notes that standard and queen pillows can share cases[3]. A queen case will fit the Tri-Comfort Standard easily; a standard case will be snug. The King matches the usual 20 by 36 inch king size[3].

Six inches is the height before your head goes on. Shredded memory foam and fiber compress, so the height you sleep at is lower, and how much lower depends on the zipper setting and the weight of your head. The working height of about 5 inches in our spec table is an estimate, not a measurement.

How the ComforZip settings work

The Tri-Comfort has three presets, set with two zippers, and no fill to add or remove. Nectar's instructions are simple: zip both sides for firm, one for medium, and none for soft. Nectar calls the system ComforZip, says it's patented, and markets it as pain relief technology that helps reduce neck pain[1]. We found no study of this pillow behind the neck-pain claim. What a zipper changes is how tightly the fill is packed; whether that helps your neck depends on the resulting height fitting your frame, which our neck pain guide covers. The zippers sit in the side gussets[1]. Opening one lets the fill spread into more space; closing it packs the same fill tighter.

Height and firmness move together. Mattress Clarity's tester found the firm, fully zipped setting gives the lowest loft, so she suggested it for stomach sleepers[4]. The flip side matters for side sleepers: the tallest setting is also the softest.

How big is the change? Testers disagree. Mattress Clarity's tester and her husband had clear favorites: she liked the softest setting for side sleeping, he preferred medium on his back, and neither liked fully zipped[5,4]. Fortune's tester called the change subtle and wasn't sure zipping made a big difference[6]. Nectar describes no way to add or remove fill[1], and NCOA lists “can't adjust loft” as a drawback[2]. Compared with a fill-adjustable pillow, the range is narrow. You trade fine control for never handling loose foam.

One small annoyance: Mattress Clarity's tester found the zippers sometimes snagged on the generous fill inside[4]. Zip slowly and push the fill back from the teeth with your other hand.

Fill and cover

Inside are memory foam clusters mixed with microfiber down alternative, under a quilted cover that's sewn on. Nectar describes the fill as memory foam and microfiber down alternative, and its FAQ says the foam is upcycled support foam and memory foam[1]. We didn't find a foam certification listed on the product page[1], so if CertiPUR-US matters to you, ask Nectar before you buy.

Testers liked the feel. Mattress Clarity's tester, who doesn't usually choose memory foam, found the fiber gave it more give and said it sank in just the right amount and kept her spine aligned[4]. Fortune's tester called the fill very soft and moldable and said it didn't flatten much[6]. It's heavy for a pillow, though. Mattress Clarity's tester found it hard to switch from side to side when she used it between her legs[5].

The cover is a polyethylene-infused fabric that Nectar says pulls heat and moisture away[1]. Fortune describes it as quilted, and its tester called it sleek, smooth and very cool to the touch, without a plasticky feel[6]. Mattress Clarity's tester called it soft, smooth and durable[5]. It can't be removed[6].

Cooling: what the tests show

The Tri-Comfort has a measured cooling result, and it beat every other pillow in that test. NCOA's testers took a thermal-gun reading of each pillow before and after use. The Tri-Comfort warmed by just 8°F (4.4°C), the smallest rise of any pillow in that test. Coop's adjustable pillow rose 12.1°F (6.7°C), the Silk & Snow 11.6°F (6.4°C) and the Saatva Latex 14.4°F (8°C). It was one of only two pillows with a single-digit rise, the team scored its cooling 5 out of 5, and one tester said they were “wowed by how cool the pillow felt.” Testers also noted whether each pillow felt cool before the test and whether it held too much heat to stay comfortable overnight[2]. Mattress Clarity's tester could feel the coolness even through a pillowcase[4].

Keep the method in mind. A thermal gun reads the surface before and after about three minutes of lying on it[2]; it doesn't track temperature all night or measure sleep. A cool-touch cover works hardest at first contact, when heat flows quickly out of your skin into the fabric[7]. The shredded fill matters after that, because air can move between the pieces. Our cooling guide explains why airflow lasts longer than a cold first touch.

Is it tall enough for side sleeping?

For average shoulders, usually yes; for broad shoulders, maybe not. This is where testers split most. Mattress Clarity's tester slept on her side on the softest setting, gave her experience 5 out of 5, and the site named it the best cooling pillow for side sleepers[5]. Fortune's tester found it comfortable on her back, but warned that in any setting it might not be tall enough for side sleepers[6]. NCOA, which rated it highest for cooling, recommends it for stomach sleepers, though one of its testers felt their head and neck stayed in line with the spine in every position they tried[2].

The design explains the split. You can't add fill, so the most height you'll get is the soft, fully unzipped setting, and that setting compresses the most under your head. If your shoulders are narrow or your mattress is soft, that's often enough. If you're broad-shouldered on a firm mattress, measure the gap from your ear to the mattress first, using our pillow-height guide, and compare it with what the pillow gives you once compressed.

It suits people who switch between side and back. Fortune's tester recommends it for combination sleepers because you can reset it for each position[6], and Mattress Clarity's back-sleeping tester settled on medium[4]. If you sleep mostly on your stomach, read our side and stomach guide first: with the fill locked in, this pillow can't go truly flat.

Care, trial and warranty fine print

Spot cleaning is the only care Nectar describes, and both the trial and the warranty come with conditions. Nectar says to spot clean spills with mild soap and water, pat gently, squeeze out the excess water and let it air dry. It says no washing machine or dry cleaning is needed[1]. Testers marked it down for this: NCOA gave it 3 out of 5 for ease of care[2]. A zippered protector under the pillowcase is the practical fix, since the cover doesn't come off.

Follow those instructions for another reason. Nectar's bedding warranty can be voided if you don't follow the care instructions, and returns during the trial must come back like new, with no stains or signs of normal wear[8,9].

  • Trial: 30 nights from delivery, for pillows bought from Nectar or certain authorized retailers. Promotional or free bedding can't be returned[9], so a free pillow from a bundle deal is yours to keep.
  • Warranty: one year from delivery, for the original buyer only, covering manufacturing defects in materials or workmanship. Normal wear and tear isn't covered, the remedy is a replacement, and you may pay shipping each way unless Nectar confirms a defect. Nectar can also ask for photos of the defect instead of the pillow itself[8].
  • Amazon orders: Amazon's rules apply. Most items can be returned within 30 days, and Amazon may charge a fee for items with obvious signs of use[10].

Because normal wear isn't covered and you can't top up the fill, gradual softening over the years is your cost to absorb. Fortune's tester expects the materials to hold up[6], but we found no tester report covering a year or more of use.

Make sure you're buying the right Nectar

Nectar sells more than one cooling pillow, and older reviews cover a different design. The Serenity Cooling Pillow is a separate model: 19 by 27 by 6 inches in Standard, with shredded memory foam and polyester fill and a polyester cover with cooling yarns. Nectar's page for it mentions no zipper settings[11]. Reviewed's 2023 side-sleeper test covered the older Nectar Memory Foam Pillow, which had removable stuffing, no spare-fill bag and a 50-night trial[12]. Its verdict doesn't describe the Tri-Comfort. Check for the zippered gussets and the 20 by 28 inch Standard size before you order.

How it compares, and who should buy it

The Tri-Comfort is the simplest of the zipper pillows, with the coolest result in NCOA's test but the least room to adjust.

  • Helix ComfortAdjust: the same zip-for-firmness idea plus removable fill, so you can set height and softness separately. It's also spot clean only, with a 30-night trial and a 1-year warranty[13]. Choose the Helix if you're broad-shouldered or picky about height.
  • Coop Original Adjustable: fill you remove by hand, no zippers. Coop says you can machine wash the whole inner pillow[14], and it takes most direct returns within 100 days[15]. It warmed more than the Nectar in NCOA's thermal-gun test[2].
  • Layla Kapok: a lighter kapok-and-foam fill you can remove, a washable outer cover and a 5-year warranty[16], but no cool-touch cover.

Buy the Tri-Comfort if you sleep warm, switch between your side and back, have average or narrow shoulders, and want three settings you can change in seconds without handling loose fill. Skip it if you need a tall pillow for broad shoulders, want to wash your pillow, or want more than a year of warranty cover.

Score comparison

Neck supportSide-sleeper loftPressure reliefCoolingDurabilityValueNectar Tri-Comfort · Neck support: 7.5Nectar Tri-Comfort · Side-sleeper loft: 8Nectar Tri-Comfort · Pressure relief: 7.5Nectar Tri-Comfort · Cooling: 7.5Nectar Tri-Comfort · Durability: 6.5Nectar Tri-Comfort · Value: 6.5Coop Original Adjustable · Neck support: 8.5Coop Original Adjustable · Side-sleeper loft: 9.5Coop Original Adjustable · Pressure relief: 8Coop Original Adjustable · Cooling: 6.5Coop Original Adjustable · Durability: 7Coop Original Adjustable · Value: 8.5Coop Original Crescent · Neck support: 8.5Coop Original Crescent · Side-sleeper loft: 9Coop Original Crescent · Pressure relief: 8.5Coop Original Crescent · Cooling: 6.5Coop Original Crescent · Durability: 7Coop Original Crescent · Value: 8
Nectar Tri-ComfortCoop Original AdjustableCoop Original Crescent

Featured in: Side + stomach sleepers · Cooling pillows

Frequently asked questions

What size is the Nectar Tri-Comfort Cooling Pillow?

Nectar lists the Standard at 20 x 28 x 6 inches and 4 lb, and the King at 20 x 36 x 6 inches and 5 lb[1]. A queen pillowcase fits the Standard; a standard case will be snug.

Can you remove fill from the Nectar Tri-Comfort?

Nectar describes no way to add or remove fill. You adjust it with two gusset zippers: both zipped for firm, one for medium, none for soft[1].

Which Nectar Tri-Comfort setting is best for side sleepers?

Usually soft, with both zippers open, because it's also the tallest. Mattress Clarity's side-sleeping tester preferred it, and found the fully zipped firm setting the lowest[4].

Can you wash the Nectar Tri-Comfort pillow?

No. Nectar says to spot clean with mild soap and water and let it air dry[1], and the cover can't be removed[6]. Use a zippered protector under your pillowcase.

Does the Nectar Tri-Comfort really sleep cool?

It measured coolest in NCOA's thermal-gun test, warming 8°F (4.4°C) after use[2], and testers describe the cover as very cool to the touch[6]. That test reads the surface at two moments, not across a whole night.

Nectar Tri-Comfort

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Sources & references

Every claim above links to one of these. Studies are listed with authors and year; editorial sources were accessed in October 2026.

  1. 1.Tri-Comfort Adjustable Memory Foam Pillow (dimensions, materials, care FAQ). Nectar Sleep (2026)manufacturer
  2. 2.Lurie V. The 6 Best Cooling Pillows in 2026. National Council on Aging (NCOA) (2026)editorial
  3. 3.Pillow Sizes & Dimensions: Find The Right Fit For Your Bed. Sleep Foundation (2022)editorial
  4. 4.DiCicco L. The Best Cooling Pillows of 2026. Mattress Clarity (2026)editorial
  5. 5.The Best Pillows for Side Sleepers. Mattress Clarity (2026)editorial
  6. 6.The Best Memory Foam Pillows of 2026. Fortune (2026)editorial
  7. 7.Li X, Wang S, Li Y, Jin X, Ma L, Tian W, Zhu C. Evaluation model of fabric transient cooling sensation based on multiple stepwise regression analysis. Journal of Engineered Fibers and Fabrics (2023)lab test
  8. 8.Nectar Warranties: 1-Year Bedding Product Limited Warranty Policy. Nectar Sleep (2026)manufacturer
  9. 9.Nectar Trials: Bedding 30-Night Home Trial Period. Nectar Sleep (2026)manufacturer
  10. 10.Amazon Return Policy. Amazon.com Customer Service
  11. 11.Serenity Cooling Pillow. Nectar Sleep (2026)manufacturer
  12. 12.Vickers L. The Best Pillows for Side Sleepers. Reviewed (USA Today) (2023)editorial
  13. 13.ComfortAdjust Cooling Pillow (materials, adjustment steps, care, trial and warranty FAQ). Helix Sleep (2026)manufacturer
  14. 14.Care Instructions. Coop Sleep Goodsmanufacturer
  15. 15.Returns. Coop Sleep Goods (2026)manufacturer
  16. 16.Layla Kapok Pillow (specifications, care FAQ, trial and warranty). Layla Sleep (2026)manufacturer