When you first arrive in Vietnam and check into a hotel or move into a rented flat, you will almost always find one: a long cylindrical pillow resting right down the middle of the bed. Nobody really explains what it is. It isn't a maternity pillow, it isn't just for decoration, and it certainly isn't a spare head pillow. In Vietnam, it is called a gối ôm — literally a "hug pillow" — and it exists purely because of our climate, not tradition.
What it is actually for
When you sleep on your side, your upper arm rests against your lower arm, and your top leg lies right over your bottom leg. That skin-to-skin contact traps body heat and sweat in the exact spots air cannot reach — inside your knees, along your inner thighs, and under your arms.
In a temperate climate, you might barely notice this. But at 30°C with 80% humidity, that trapped heat is usually why you wake up feeling damp at two in the morning.
Hugging a bolster holds your arms and legs apart. It creates a gentle gap so air can flow between your limbs. It is simple physics, really, and it is why similar pillows exist right across tropical Asia.
There is a second benefit that physical therapists often point out: holding something keeps your top hip from rolling forward and twisting your lower back. Many side sleepers with back pain end up discovering this relief quite by accident after moving here.
Why a bolster and not a duvet
A typical bed in Vietnam is made up with just a fitted sheet, a light blanket, two pillows, and one bolster. Heavy duvets are rare here, simply because for most of the year you do not need one.
The bolster gives you what a duvet offers in cooler places — something cozy to hold onto — without adding extra warmth. That balance is really what the whole bed layout is designed around.
What to check before buying one
The cover is where the cooling happens
A bolster rests against more of your skin, for longer hours, than your head pillow ever does — and right along the places that hold heat. Because of this, the choice of fabric matters even more on a bolster than anywhere else on the bed.
A standard cotton cover absorbs sweat and holds that damp warmth against your arm through the night. A heat-releasing fabric works differently: it draws warmth away from where you touch it rather than storing it up.
We tailor our bolster covers using the same Ice Spandex Tech 2.0 fabric as our bed sheets — 86.6% polyamide and 13.4% spandex. The polyamide helps pull heat away from your skin, while the bit of stretch helps the cover fit smoothly around the pillow without gathering or bunching up.
It isn't the right choice for everyone, and we like to be clear about that. You can find an honest comparison with cotton and Tencel, including where each fabric falls short, on our fabric guide.
Practical things nobody tells you
- Wash the cover, not the inner pillow. The outer cover zips off easily for washing. The microfiber inner core stays fresher for longer if you air it in the shade rather than putting it in a washing machine.
- Air it out more often than you think. In this humidity, anything pressed against skin night after night stays fresher with regular airing. A few hours in a breezy, shaded spot works best, away from harsh direct sunlight.
- Replace the inner core before the cover. Over time, any pillow insert compresses and stops keeping that airflow gap open, which was its main purpose. The outer cover will almost always outlive the cushion inside.
- One per person works best. When couples try to share a single bolster, neither person ends up getting enough space for proper support.
If you are not sure
A bolster often sounds unnecessary until you spend one warm night sleeping with it. If you are living in Ho Chi Minh City, you are welcome to drop by and feel one in person before deciding — it really is the easiest way to see if it suits you.
JUDY DRAP — 169/36 Lương Định Của, An Khánh, District 2, Ho Chi Minh City
Monday – Saturday, 10:30 – 17:30 · Closed Sunday · Phone / Zalo: 0854 225 656
Setting up your bed in Vietnam for the first time? You can start with our guide for expats, or take a look at our bed size conversion table if you are trying to find what fits your mattress best.
If you would like to test hugging one before making up your mind, our store space at 169/36 Lương Định Của (An Khánh, Thủ Đức) is open from 10:30 to 17:30, Monday through Saturday. You are welcome to pop in and test how it feels for a minute — we are always glad to welcome visitors, whether you decide to buy or just want to take a look.
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