Head-to-head · Best Cooling Blankets

Sijo Eucalyptus Bed Blanket vs Slumber Cloud Lightweight Cooling Comforter

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Sijo Eucalyptus Bed Blanket comes out ahead by a narrow margin (4.6 vs 4.4). The gap is mostly about Hot sleepers and night-sweat sufferers who want the cooling benefits of TENCEL eucalyptus without the dry-clean-only requirement of competing brands, and shoppers who care about closed-loop sustainable production. — read the strengths below before deciding.

Higher ratedRanked #2 in Best Cooling Blankets

Sijo Eucalyptus Bed Blanket

4.6

$115

Sijo's Eucalyptus Bed Blanket is the value pick of the cooling-blanket category and the smartest TENCEL choice for hot sleepers who want a single blanket year-round. The eucalyptus-derived TENCEL lyocell weave is famously breathable — Apartment Therapy testers reported waking up sweat-free — and the cotton blend adds enough body that the blanket layers well over a comforter in winter. Sale pricing brings it under $100, which is exceptional value for an OEKO-TEX certified TENCEL blanket.

Strengths

— 50% TENCEL lyocell from eucalyptus + 50% cotton at 350 GSM blends cooling and durability in one fabric
— Sleep Foundation's award-winning Sijo line — testers reported waking up "totally sweat-free" even on hot summer nights
— Closed-loop TENCEL lyocell production is more eco-friendly than traditional viscose, plus OEKO-TEX 100 and FSC certified

Watch-outs

— Available in fewer colors and sizes (3 sizes total) than premium bamboo competitors
— The 350 GSM weight is heavier than gauze blankets, so it can feel warm in peak August humidity
— Brand-direct only — no Amazon listing for the blanket, so no Prime shipping

$115 · Buy at sijohome.com Full review →

Ranked #4 in Best Cooling Blankets

Slumber Cloud Lightweight Cooling Comforter

4.4

$240

Slumber Cloud's Lightweight Cooling Comforter is the only pick in this group that uses an active phase-change material (Outlast ClimaDry, originally developed for NASA spacesuits) rather than relying on natural fiber breathability. The PCM absorbs body heat as it builds and releases it as you cool down, which is a meaningfully different mechanism than bamboo or linen passive airflow. Reviews split between testers who swear by the night-sweat reduction and those who find the cooling underwhelming, so the 30-night trial is essential — try it before deciding.

Strengths

— NASA-derived Outlast® phase-change material clinically shown to reduce night sweats by up to 50%
— 300-thread-count 100% cotton outer cover keeps the surface breathable while the PCM fill does the work
— Forbes Vetted tester reported the comforter "feels cool throughout the night," not just on first contact

Watch-outs

— Healthline noted that in peak summer months the comforter "may still be too warm to use"
— Some Trustpilot reviewers found cooling performance "indistinguishable from a $20 Walmart comforter" — results vary
— Quarter-inch profile lacks the plush, squishy feel of traditional duvets

$240 · Buy at slumbercloud.com Full review →

How they stack up

Sijo Eucalyptus Bed Blanket

More breathable and lighter than the Cozy Earth Bamboo Blanket at one-third the price, but with less luxurious drape and a shorter trial period. Better cooling than the Luxome Lightweight Blanket because eucalyptus TENCEL outperforms standard bamboo viscose on moisture-wicking tests. Heavier and more substantial than the Quince Organic Airy Gauze Blanket, so it works as a standalone year-round blanket where the gauze quilt is mostly a summer-only layer.

Slumber Cloud Lightweight Cooling Comforter

The only pick here using active phase-change material (Outlast PCM) rather than passive natural-fiber cooling — meaningfully different feel and mechanism from the Cozy Earth Bamboo Blanket, Sijo Eucalyptus Bed Blanket, Brooklinen Washed European Linen Quilt, and Luxome Lightweight Blanket. More thermally responsive than any of those natural-fiber picks, but doesn't offer their hand-feel or sustainability story. Best for buyers who explicitly want active tech rather than fiber-based cooling.

Specs side-by-side

Spec	Sijo Eucalyptus Bed Blanket	Slumber Cloud Lightweight Cooling Comforter
Material	50% TENCEL lyocell (eucalyptus) / 50% cotton, 350 GSM waffle weave	300-thread-count 100% cotton cover; 50% Outlast® ClimaDry / 50% polyester fiberfill
Cooling Tech	TENCEL lyocell — closed-loop process, moisture-wicking, breathable	Outlast® PCM (phase-change material, NASA-derived)
Sizes Available	Twin/Twin XL 66" x 90"; Full/Queen 90" x 90"; King/Cal King 106" x 90"	Full/Queen 90" x 98"; King/Cal King 108" x 98"
Care	Machine wash cold, gentle cycle; tumble dry low; no fabric softener	Machine wash cold, gentle; tumble dry low; wash every 1-3 months
Certifications	OEKO-TEX Standard 100; FSC A000525 certified	—
Trial Period	30-day trial, 60-day return window	30-night risk-free trial with free returns
Color Options	Multiple solid colorways including Fog, Cream, Pearl	White only
Warranty	Standard manufacturer defect coverage	1-year limited warranty (does not cover temperature performance)
Construction	—	6-inch box-stitch quilting pattern

← See the full ranking of best cooling blankets