Your Bedroom Is 28.4°C. Why Korean Mink, Fleece and Electric Blankets Backfire in Singapore

Your bedroom is probably 28.4°C at night. That is the average a 150-person Singapore study found, and it is why a thick Korean mink blanket, a fleece throw or an electric blanket so often ends with you kicking it off at 3am.

These blankets are not bad products. They were built to hold heat in cold rooms. In Singapore the night rarely cools enough for that to help, so the same warmth that feels cosy at 8pm turns into trapped heat by midnight.

What should you use instead on a Singapore night?

Start here, then read the why below.

Match the blanket to the room, not the shop display. Meteorological Service Singapore data shows nights usually bottom out at 23 to 25°C. Bedrooms are warmer still, at 28.4°C on average. A blanket designed for winter is solving a problem you do not have.
Save the mink for cold rooms. If your aircon runs cold all night, or you are packing for a winter trip, a heavy mink blanket makes sense. On a fan-only night, fold it away.
Swap fleece for a lighter, breathable layer. A thin cotton or lyocell sheet is easier to manage than a plush polyester pile when humidity climbs past 90% before sunrise.
Use an electric blanket as a pre-warmer only. The London Fire Brigade advises unplugging it before you get into bed, unless it has a thermostat control made for safe all-night use.
Aim the room lower. Sleep Foundation suggests about 18.3°C (65°F) as a general target. Most Singapore homes will not get there, but every degree you shave off helps.

Why do Korean mink blankets feel so hot in Singapore?

A Korean mink blanket has no mink in it. It is a dense, plush synthetic, usually 100% polyester, made by Raschel warp-knitting to copy the soft feel of fur.

Korean makers popularised the style, and between the 1970s and 1990s it spread through trade routes to Southeast Asia. That is partly why so many Singapore homes have one folded in a cupboard.

The design goal was warmth. One bedding retailer's guide puts typical Korean mink blankets at 600 to 800 grams per square metre, against roughly 200 to 300 for regular fleece. More dense pile means more still air held against your body, which is exactly what you want in a Seoul January and exactly what you do not want in a Toa Payoh HDB flat in June.

Is a fleece blanket any better?

Lighter, yes. Cooler, not really. Most fleece is also polyester, and it insulates the same way: a soft pile that traps a layer of warm air.

A review of thermal environment research by Okamoto-Mizuno and Mizuno found that in real-life sleep, with bedding and clothing in use, heat exposure increases wakefulness and reduces slow wave sleep and REM sleep. Humid heat adds to that thermal load. A warm blanket on a humid night pushes you in the same direction as a warmer room.

Fleece earns its place on the sofa under strong aircon. In bed, on a typical Singapore night, it tends to work against you.

What does the research say about electric blankets?

Here the answer is genuinely mixed, and the room temperature decides it.

In a Japanese study of 9 young men sleeping in a 3°C room, an electric blanket reduced light stage 1 sleep and kept their bodies warmer. The authors concluded that in real cold, added heat may support more stable sleep.

An Australian study tested the opposite case. Researchers heated 16 young adults with an electric blanket from 2:30am until waking. Core temperature rose by about 0.18°C, and sleep efficiency in the later part of the night dropped by about 5.5%. Time spent awake and in light sleep went up.

Put simply: extra heat helps when the room is cold, and disrupts sleep when it is not. Singapore nights are firmly in the second group.

How do the numbers stack up?

| What was measured | Number | Source | |---|---|---| | Typical Singapore night minimum | 23 to 25°C | Meteorological Service Singapore | | Average Singapore bedroom at night | 28.4°C (150 residents) | Straits Times, HEATS study | | Humidity just before sunrise | above 90% | Meteorological Service Singapore | | Sleep lost per 1°C rise, non-AC dorms | about 10 minutes | Straits Times, HEATS study | | General bedroom target | about 18.3°C | Sleep Foundation | | Electric blanket heating overnight | core +0.18°C, sleep efficiency down about 5.5% | Fletcher et al., Sleep, 1999 | | Electric blanket in a 3°C room | less light stage 1 sleep | Okamoto-Mizuno et al., Ergonomics, 2005 |

The same tool gives opposite results depending on the room. In a 3°C room it helps. In a 28°C room it is the wrong tool.

What if you love the heavy, tucked-in feeling?

That feeling is often why people reach for a mink blanket in the first place. The weight is the comfort, and the heat comes along for the ride.

You can separate the two. A weighted blanket gives the pressure, and a cooling weighted blanket is built to shed heat rather than store it. Our cooling blanket vs weighted blanket guide explains when you need one, the other, or both.

If you are looking at weight, a rough guide is about 10% of body weight. Weighted blankets are for ages 6 and up, never for babies or toddlers. Fire safety guidance from South Australia also says never to place a baby on an electric blanket.

For context, NightFury was designed in Singapore for exactly this climate: a phase-change cooling knit over glass micro-beads, with an independently tested Q-Max of 0.368 W/cm². If you want to try the weight without the heat, the cooling weighted blanket comes with a 30-day sleep trial and free islandwide delivery.

So should you throw out your mink blanket?

No. Keep it for the cold aircon nights, the movie marathon, or the winter trip. Just stop asking it to do a job it was never designed for.

Tonight, try one swap: put the warm blanket away, use the lightest layer you own, and notice whether you still wake up hot before dawn.

What is in your bed right now: mink, fleece, or nothing at all?

Sources

Shabana Begum, "What's the temperature in the bedroom in S'pore? A muggy 28 deg C, says new study on residents", The Straits Times, 25 Jun 2026. https://www.straitstimes.com/singapore/environment/whats-the-temperature-in-the-bedroom-in-spore-a-muggy-28-deg-c-says-new-study-on-residents
Meteorological Service Singapore, "Climate of Singapore" (1991 to 2020 climate station means). https://www.weather.gov.sg/climate-climate-of-singapore/
Sleep Foundation, "Best Temperature for Sleep". https://www.sleepfoundation.org/bedroom-environment/best-temperature-for-sleep
Okamoto-Mizuno K, Mizuno K. "Effects of thermal environment on sleep and circadian rhythm." Journal of Physiological Anthropology, 2012. https://pubmed.ncbi.nlm.nih.gov/22738673/
Fletcher A, van den Heuvel C, Dawson D. "Sleeping with an electric blanket: effects on core temperature, sleep, and melatonin in young adults." Sleep, 1999. https://pubmed.ncbi.nlm.nih.gov/10341381/
Okamoto-Mizuno K, Tsuzuki K, Ohshiro Y, Mizuno K. "Effects of an electric blanket on sleep stages and body temperature in young men." Ergonomics, 2005. https://pubmed.ncbi.nlm.nih.gov/16076735/
London Fire Brigade, "Electric blankets: fire safety at home". https://www.london-fire.gov.uk/safety/the-home/electrical-items/electric-blankets/
Noam Backner, "Asia's Mink Blankets". https://noambackner.com/writing/asias-mink-blankets
Mattress Miracle, "Korean Mink Blanket: Raschel Heavyweight Guide". https://mattressmiracle.ca/blogs/mattress-miracle-blog/korean-mink-blanket-raschel-heavyweight-guide
Metropolitan Fire Service (South Australia), "Electric blankets" fact sheet. https://www.mfs.sa.gov.au/community-safety/safety-and-education/fact-sheets/electric-blankets
NightFury, "Technical specification". https://nightfury.io/specifications.html