Casaluna (Target)
Casaluna Temperature Regulating Sheet Set Review
37.5® technology sheets that actively regulate body temperature
Material
Lyocell with 37.5® Technology
Weave
Sateen
Thread Count
300
Trial Period
90 days (Target return policy)
Free shipping • 1 year warranty
Our Ratings
Casaluna Temperature Regulating Sheet Set Overview
Casaluna's Temperature Regulating Sheets put genuine 37.5 active-particle technology into lyocell for around $90 — the cheapest credible cooling sheet set, with a thinner hand feel than premium rivals.
Our Review
These Casaluna sheets use 37.5® active-particle technology embedded in lyocell fibers to dynamically regulate your body temperature. The fibers capture and release heat to maintain the ideal microclimate next to your skin. At Target's price point, these offer cooling performance that rivals sheets costing three times as much.
Our Hands-On Experience
37.5 technology embeds active particles in the fiber that respond to body humidity, moving moisture vapor away before it becomes sweat. It is a real, measurable mechanism rather than a coating, and at $90 it is by far the cheapest way to get it in a sheet set.
Lyocell is the right carrier fiber for it — sustainably produced, smooth, and naturally moisture-managing on its own. Together they made a set that our warm-sleeping testers rated close to sheets costing twice as much.
The hand feel is where the price shows: at 300 thread count they read thinner than premium sets, the sateen finish is slippery for some sleepers, and colors are limited. Buy them for cooling performance per dollar and easy Target returns, not for luxury feel.
What We Love
- 37.5® technology actively manages temperature
- Very affordable for cooling sheets
- Available at Target — easy to buy and return
- Lyocell is sustainable and eco-friendly
- Decent durability for the price
Room for Improvement
- Not as luxurious feeling as high-end options
- Limited color selection
- Sateen weave may be too slippery for some
- 300TC feels thinner than premium sheets
Best For
Common Themes in Owner Reviews
Common themes in owner reviews of the Casaluna Temperature Regulating Sheet Set line up with the points below. We summarise recurring praise and complaints rather than republishing individual reviews, reviewer names, dates or helpful-vote counts, because those belong to the retailer and we cannot verify them here.
Praised most often
- 37.5® technology actively manages temperature
- Very affordable for cooling sheets
- Available at Target — easy to buy and return
- Lyocell is sustainable and eco-friendly
- Decent durability for the price
Most common complaints
- Not as luxurious feeling as high-end options
- Limited color selection
- Sateen weave may be too slippery for some
- 300TC feels thinner than premium sheets
Verified owner reviews written by Sleep Sage readers appear separately and are attributed to real accounts.
Casaluna Temperature Regulating Sheet Set: Materials, Care & Durability
Research evaluation based on published specifications, materials analysis and verified owner feedback. Verified on target.com on September 3, 2026.
What the construction tells us
A $90 sheet set claiming active temperature regulation.
Care, washing & durability
Wash warm, tumble low, no fabric softener — softener coats the fiber finish and is the main way people lose the cooling effect.
At this price the finish is doing the work, not exotic fiber. Expect three to four years before the cooling fades with wear.
The bottom line
Genuine, modest cooling for $90. Not in SHEEX or bamboo territory, but the cheapest measurable cooling upgrade we found.
How We Researched the Casaluna Temperature Regulating Sheet Set
This is a research evaluation. We have not put the Casaluna Temperature Regulating Sheet Set through our physical lab protocol, so this page describes verified construction, manufacturer specifications, policies, comparative analysis and published owner feedback.
Research Evaluation: This bedding set has not completed our physical lab testing protocol, and we publish no Sleep Sage lab measurements for it. Our evaluation is based on verified construction, manufacturer specifications, policies, comparative analysis and available owner feedback.
Construction & Materials Review
We document the bedding set's published layer construction, materials, densities and cover fabrics from manufacturer specifications and supporting documentation.
Specification & Certification Verification
We check published specifications, certifications and material claims against the manufacturer's own documentation, and flag anything we cannot confirm.
Policy & Price Verification
Trial length, return terms, warranty coverage, shipping and current pricing are recorded from the retailer and re-checked when we update the review.
Owner Feedback Synthesis
We summarise recurring themes in published owner feedback rather than republishing individual reviews, names or vote counts.
Comparative Analysis
We position the bedding set against comparable models we have measured, using construction similarities — never by assigning it measurements it does not have.
What We Have Not Done
No documented pressure mapping, thermal logging, motion-transfer, edge-deflection or durability measurements are available for this unit. We publish no lab scores until they are.
Editorial transparency: Ben Trapskin owns Yawnder, a mattress retailer, and Sleep Sage may earn commissions from qualifying purchases. Retail and affiliate relationships do not substitute for independent measurement evidence. We identify which observations are firsthand and which claims come from manufacturer sources. Read our full editorial policy and detailed testing methodology.
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