SLEEP SCIENCE
The science of 68°F.
Sleep scientists have known the optimal sleep temperature for decades. We built the first comforter that actively delivers it — all night, every night.
The short version
Your body needs to cool to fall asleep and stay asleep. Most comforters trap heat and work against that. The Nova Adapt Comforter pairs aerospace-grade graphene fiber (gentle contact warmth) with phase-change microfibers (the same tech used in astronaut suits) — actively absorbing excess body heat when you run hot and releasing it back when you cool. Your microclimate stays in the 65–68°F zone all night. No batteries. No wires. No app.
01 — The temperature science
Why 68°F changes everything.
Your core body temperature naturally drops 1–3°F as you fall asleep — a biological trigger for melatonin release and deep sleep onset. The ambient temperature of your sleep environment directly accelerates or impedes this process.
Think of it this way: Your body is like an engine that needs to cool down to rest. A regular comforter is like wrapping that engine in a blanket — it traps the heat. Nova Adapt is like a radiator: it pulls heat away when things get too warm and adds warmth when things cool too much.
When your environment is too warm, your body cannot complete this temperature drop efficiently. The result: longer time to fall asleep, fewer deep sleep cycles (N3 / REM), and more frequent night wakings.
Research consistently identifies 65–68°F (18–20°C) as the optimal ambient range for healthy adult sleep. Nova Adapt is the first comforter engineered specifically to maintain this window for your body's microclimate, not just the room.
Clinical references
- Harding EC, et al. "The temperature dependence of sleep." Frontiers in Neuroscience, 2019.
- American Academy of Sleep Medicine. "Optimal sleep environment temperature." 2022.
- Czeisler CA, et al. "Sleep and circadian rhythms." Science, 1980.
02 — The Nova Adapt system
Four quiet stages. One restful night.
The Nova Adapt Comforter is a dual-core thermal system, co-developed by Sleep68 (Casablanca, HKEX 2223) and the Beijing Institute of Graphene Technology. Four stages work together to actively regulate body-surface temperature — no electronics required.
01 — Block
AeroWeave Shell
36-direction airflow
A 300TC hexagonal micro-channel weave directs airflow in 36 directions, eliminating the still-air boundary layer that causes hot spots and traps radiant heat.
02 — Generate
Graphene Fiber Core
Aerospace-grade thermal layer
Aerospace-grade graphene fibers woven through the core. Within a minute of skin contact, the gentlest warmth begins — without bulk, weight, or electric elements.
03 — Lock
Reflective Barrier
98% heat return
A breathable reflective layer sends 98% of your body heat back where it belongs. Insulation without heaviness, without stuffiness, without the feel of being wrapped.
04 — Store
NovaTherm PCM Fill
Latent heat: 180–200 J/g
Phase-change microfibers (12–28 µm, polymer-encapsulated) absorb excess heat when you run hot and release it back the moment you cool. The thermal battery you sleep under.
Simple analogy: Imagine thousands of tiny ice packs woven into your comforter that never need to go back in the freezer. When you warm up, they absorb the heat (melting). When you cool down, they release warmth back (solidifying). This cycle repeats all night, automatically.
03 — Material transparency
What's inside Nova Adapt.
| Component | Material | Origin | Certification |
|---|---|---|---|
| Outer shell | Bamboo / cotton blend, 300TC | Hong Kong (Casablanca) | GOTS Certified |
| Thermal core | Graphene + PCM microfiber blend | Beijing (BIGT) / Hong Kong | OEKO-TEX Standard 100 |
| Reflective layer | Micro-perforated polymer film | Hong Kong | OEKO-TEX Standard 100 |
| Binding | Recycled polyester thread | — | GRS Certified |
| Animal products | None · 100% vegan · No down, no wool, no live-plucked materials | ||
04 — How Nova Adapt compares
Not all "cooling" is created equal.
Most "cooling" comforters use a breathable shell. They let heat escape passively but they do not actively regulate temperature. Smart-bed systems do regulate temperature, but they need electricity, can't be washed, and cost thousands. Here's how the approaches stack up:
| Feature | Regular comforter | "Cooling" comforter | Smart-bed system | Nova Adapt |
|---|---|---|---|---|
| Active temp regulation | No | No | Yes | Yes |
| No electricity needed | Yes | Yes | No | Yes |
| Machine washable | Varies | Varies | No | Yes |
| Absorbs excess heat | No | No | Yes | Yes (PCM) |
| Releases warmth when cool | Traps heat | Lets heat escape | Yes | Yes (PCM) |
| Price range | $50–150 | $100–300 | $2,000–8,000 | From $79 KS |
05 — Beta test results
250 beta units. 3 weeks. Real data.
* Self-reported data. Beta program n=250, 3-week in-home testing period, 2025–2026. Individual results vary.
Ready to sleep at 68°F?
2,400+ already on the VIP launch list. Early Bird tiers from $79 — capped at 100 backers.