Description
The Fitted Sheet That Regulates Your Temperature While You Sleep
The Velfont Fresh Fitted Sheet is not a standard cotton fitted sheet — it is 100% cotton fabric treated with Outlast® thermoregulating technology, a phase change material system originally developed by NASA that actively manages body temperature throughout the night rather than simply covering it. For those who wake up hot and sweaty, those who struggle to fall asleep because they feel too warm, or those who share a bed with a partner who has different temperature needs, the Fresh is the most direct and technically resolved solution available in a simple fitted sheet format.
Outlast® Technology — From NASA to Your Bed
Outlast® technology was originally developed by NASA to protect astronauts from the extreme temperature fluctuations encountered when exiting spacecraft during space travel — a context in which temperature regulation is a literal survival requirement. Velfont applies this same technology to the cotton fabric of the Fresh fitted sheet through natural wax microcapsules printed directly onto the cotton fibres.
These microcapsules contain a phase change material — a substance that absorbs heat energy as it transitions from solid to liquid, and releases heat energy as it transitions back from liquid to solid. The transition temperature is calibrated to the range of human body temperature during sleep.
In practice during the night:
When your body temperature rises — through exercise phases of sleep, warm room conditions, or hormonal fluctuations — the PCM microcapsules absorb the excess heat by melting. The energy is stored within the microcapsule as latent heat rather than building up at the skin surface. The result: the sleeping surface feels cooler and perspiration is reduced.
When your body temperature drops — during the cooler phases of the sleep cycle — the microcapsules solidify and release the stored heat back toward the skin. The result: the sheet maintains warmth without you needing to adjust your covers.
This continuous cycle — absorbing and releasing heat in response to body temperature throughout the night — creates a constant, individualised microclimate at the sleeping surface. Not too hot, not too cold — automatically adjusted to each person’s specific temperature at each moment of the night.
100% Natural Cotton — Technology Without Compromise
The Fresh sheet’s base material is 100% natural cotton — the same breathable, soft, skin-friendly fibre used in standard premium fitted sheets. The Outlast® treatment does not alter the hand feel, breathability, or care properties of the cotton.
This matters because some thermoregulating textiles use synthetic fibres or PVC components that compromise breathability or skin comfort in exchange for the temperature regulation function. The Velfont Fresh maintains the natural properties of 100% cotton — softness, breathability, moisture absorption — and adds Outlast® thermoregulation on top.
The Outlast® treatment is wash-resistant and dermatologically tested — it does not wash out with repeated laundering and carries the Space Foundation’s certification recognising it as a space-proven technology.
Who Benefits Most From the Fresh
The Velfont Fresh is particularly well suited for:
Heavy night sweaters: the PCM absorption reduces perspiration at the skin surface by reducing the temperature build-up that triggers sweating — studies indicate Outlast® thermoregulating products can reduce sweating rates by up to 48%.
Heat-sensitive sleepers: those who frequently wake due to overheating, those who sleep with heating on in winter, or those who use warm duvets and pyjamas benefit most from the proactive temperature buffering.
Hormonal temperature changes: the Velfont thermoregulating range is specifically recommended for periods of hormonal change — including menopause — where nocturnal temperature fluctuations are a primary sleep disruptor.
Couples with different thermal needs: because the Outlast® technology creates an individualised microclimate for each person rather than a uniform temperature across the whole sheet, each sleeper benefits according to their own temperature — the sheet responds to each individual’s body heat independently.
Fitted Sheet Format — Fits Mattresses Up to 30cm
The Fresh is elasticated all around the perimeter for a secure, crease-free fit throughout the night. It fits mattresses up to 200cm in length and 30cm in height. OEKO-TEX® Standard 100 certified. Washable at 40°C on a delicate cycle — the Outlast® treatment is fully wash-resistant.
Free Delivery in Tbilisi
The Velfont Fresh Fitted Sheet is delivered free of charge in Tbilisi by Sleep Gallery.
Product Details
- Fabric: 100% cotton with Outlast® thermoregulating PCM treatment
- Technology: Outlast® — NASA-developed phase change material microcapsules
- Function: creates constant personalised microclimate — absorbs and releases heat in response to body temperature
- Range: Velfont Fresh&Comfort
- Fits: mattress lengths up to 200cm, heights up to 30cm
- Elasticated: all around perimeter
- Care: washable at 40°C delicate cycle — no bleach, gentle tumble dry, low iron
- Certifications: OEKO-TEX® Standard 100, Outlast® Space Foundation certified
- Made in Spain — Velfont (est. 1971, Barcelona)
FAQ:
Q: What is Outlast® technology and how is it different from other cooling sheets?
Outlast® is a phase change material (PCM) technology originally developed by NASA — and it is fundamentally different from standard “cooling” sheets in how it manages temperature.
Standard cooling sheets use materials with cool-to-the-touch properties — typically high-thread-count cotton, bamboo, TENCEL™ Lyocell, or synthetic cooling fibres. These materials feel cool when you first lie on them because they conduct heat away from the skin rapidly on initial contact. However, once the material reaches thermal equilibrium with your body — usually within minutes — the cooling sensation stops. They cannot actively manage temperature fluctuations throughout the night.
Outlast® PCM microcapsules work differently: they store and release heat in response to body temperature changes throughout the full night, not just at the moment of first contact. When body temperature rises, the PCM melts and absorbs heat — buffering the rise. When body temperature drops, the PCM solidifies and releases stored heat — buffering the drop. This bidirectional regulation creates a genuinely stable microclimate rather than a brief initial coolness.
The practical difference: a cooling sheet makes you feel cool for a few minutes. The Outlast® Fresh sheet actively manages temperature fluctuations for the entire night.
Explore our Velfont Aura mattress protector → Velfont Aura
Q: Is the Outlast® treatment wash-resistant — will the thermoregulating properties diminish over time?
Yes — the Outlast® treatment is wash-resistant and maintains its thermoregulating properties through repeated washing. This is a specific and important property of Outlast® PCM technology that distinguishes it from some textile treatments that degrade with laundering.
The microcapsules are structurally integrated into the cotton fabric rather than simply coated on the surface — they are physically encapsulated within a shell that protects the phase change material inside from washing, friction, and normal textile use. The encapsulation means the PCM itself is never exposed to washing water or detergent — only the outer shell of the microcapsule contacts the wash environment, and this shell is engineered for textile durability.
The Outlast® treatment carries the Space Foundation’s certification — which requires verified performance maintenance over time — as well as OEKO-TEX® Standard 100 certification confirming that all components, including the microcapsules, are free from substances harmful to health. Follow the care label guidance — wash at 40°C on a delicate cycle, no bleach — to maintain both the cotton fabric quality and the Outlast® treatment over the product’s lifespan.
Q: Can I use the Velfont Fresh fitted sheet with a standard mattress protector beneath it — does it work together with protection layers?
Yes — the Fresh fitted sheet is designed to be used over a standard mattress protector without compromising the thermoregulating function of either layer.
The Fresh sheet sits directly above the mattress protector and directly below the sleeper’s body — it is the sleeping surface that is in direct skin contact throughout the night. The Outlast® PCM microcapsules in the cotton fabric interact with body temperature at this skin-contact surface, which is where their function is most effective regardless of what is beneath.
A mattress protector beneath the Fresh addresses a different function — protecting the mattress from liquid and wear — while the Fresh addresses sleeping temperature management above. The two layers operate independently and complement each other.
For warm sleepers specifically, combining the Velfont Fresh fitted sheet with a breathable, non-waterproof mattress protector (such as the Velfont Aura with its invisible sandwiched membrane) provides the most complete system — temperature management above through Outlast®, breathable mattress protection below through Aura’s organic cotton.
Q: The Velfont Fresh costs more than standard cotton fitted sheets — what justifies the price?
The price reflects the specific technology investment that separates the Fresh from a standard cotton fitted sheet.
A standard cotton fitted sheet is a woven or knitted cotton fabric in a fitted sheet format. The material cost is determined by cotton quality, thread count, and construction. The Fresh begins with the same cotton base — but adds Outlast® thermoregulating PCM microcapsule treatment, a licensed technology originally developed for NASA applications that carries its own material and application cost premium.
The PCM microcapsule application process — printing natural wax microcapsules onto cotton fibre in a way that maintains wash durability, OEKO-TEX® compliance, and the skin feel of pure cotton — represents a technically demanding textile processing step that standard sheet production does not include.
The functional result — a sheet that proactively buffers body temperature fluctuations throughout the night, reducing sweating and maintaining sleep continuity — is measurably different from a standard sheet. For those who regularly experience disrupted sleep due to temperature — night sweats, overheating, or seasonal temperature swings — the investment in a fitted sheet that addresses the root cause is well justified.
Learn more about Velfont → https://velfont.com
