Material. Most of the sleep experts I spoke to agreed that sheets made of natural fibers, like cotton and linen, are your best bet for sweaty sleepers because they're the most breathable (and therefore cooling).
However, thread count greatly affects heat and higher thread counts create hotter sheets. In fact, 1000TC sheets are the hottest cotton sheets you can buy. Conversely, lower thread counts (250TC-350TC 10cm2) create cooler sheets but must be made from good cotton so they last.
Whether it's flannel, jersey, or a blend featuring a premium material like cashmere, cotton sheets offer you the best of both worlds in the wintertime — plenty of insulation with enough breathability to prevent you from overheating. Microfiber material is another option that tends to be much more affordable.
If the satin sheet is crafted from rayon / polyester / other synthetic material, then cotton sheets will feel cooler than satin, especially if its a percale cotton sheet.
What type of sheets sleep the coolest? In general, sheets made from linen, bamboo, and Tencel offer the coolest, most breathable feel. Cotton sheets that feature a percale weave are also known for being exceptionally lightweight and airy, perfect for hot sleepers.
Satin feels cool to the touch, whereas silk warms up with body heat. For those who prefer to sleep on a cool surface, satin is the better choice. Satin is easy to launder and will look beautiful for years. Silk's thin, delicate fibers usually require hand washing and hanging to dry, and will degrade over time.
Flannelette sheets and bedding
When it comes to winter sheets, flannelette is the most popular and common. It's made up from a brushed thick weave fabric and usually made out of wool, cotton and other synthetic material.
Our research found that the warmest material is wool, with thicker Icelandic wool being even better, and a wool-acrylic blend being somewhere in the middle. The warmest clothing for you will be dictated by the number of layers you can use, and the thickness of the materials you are wearing.
If you naturally run on the colder side, you may be wondering if bamboo viscose bedding is for you, since it's often thought of as a cooler material. To be clear, bamboo viscose products do keep you warm, and the reason they're considered “cooling” is simply because they are excellent at temperature control.
For people who get hot during sleep, choosing sheets made of bamboo, cotton, or linen — breathable fabrics that wick away moisture from the body and help maintain a comfortable temperature — can help.
In fact, natural fibers like cotton are known to be the coolest material to sleep in. However, cotton does have some flaws. It's not particularly good at providing insulation or wicking moisture.
Linen and cotton are both great options for hot, sweaty sleepers. Both fabrics are breathable (and therefore, cooling). "Fabrics like bamboo are breathable and cool, even in warmer seasons," Holliday-Bell explains.
Quality cotton with a high thread count is what makes hotel sheets so crisp. Plus, the percale weave is the most popular weave for hotels which makes the sheets extra cool and extra crisp.
Coolness factor
Bamboo sheets tend to be cooler than cotton, making them ideal for those who tend to sleep hot.
Silk Regulates Body Temperature Better than Cotton
When you sweat, silk wicks away moisture and keeps you cool; when you're not, it insulates and maintains warmth. This is why silk sheets are great for staying warm in the winter and cool in the summer.
Cotton — Clothing made of cotton is not good for cold weather. It absorbs moisture and traps it next to your skin. Save the cotton for summer, when you might want a little extra moisture to keep you cool.
Warm air can be trapped between the layers for a long time. This makes wool a suitable and preferred material for clothing in colder seasons like winter.
Percale fabric is lighter in weight and more breathable making it perfect for summertime or warmer climates. Sateen sheets are woven to create a silky smooth surface with a luminous sheen and is known for its luster and drape. Sateen is usually a little thicker and more tightly woven.
The sheets are cold and thin and pressed right up against your skin, so they suck the heat right out of you. The blankets are "soft," as you said, so I'm also assuming "fuzzy" and/or 'thick." So even if the blanket is as cold as the sheets, it's core temperature won't be pressed right up against your skin.
When comparing bamboo lyocell Vs silk, the majority of the main points of bamboo Vs silk can also be applied. While both are silky smooth – bamboo will last longer, get softer with time, wash well and provide hypoallergenic, antibacterial properties while you sleep.
The fabric is smooth, silky, and very elegant and luxurious. Your skin won't stick to satin sheets as it would on cotton. It's hypoallergenic, which also means it's more hygienic. It's cooling, which makes it perfect for hot summer nights.
Satin sheets provide a unique tactile sensation with a combination of unusual softness and coolness. Perfect for a warm summer night cool silk satin refreshes skin and does not stick to skin that is overly warm or damp. Instead, it glides over the skin and provides just the right amount of covering without adding heat.