Cool or Warm? A Guide to Choosing the Right Sheet for Your Bed

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Cool or Warm? A Guide to Choosing the Right Sheet for Your Bed

Are you the person closing all the windows at night to keep in the warmth, or the one opening them up in the hope of cooling down enough to sleep comfortably?

Yes, managing bedroom temperatures does affect your quality of sleep, but so does your bedding. If you’re lying under the wrong type of bed sheets, you’re bound to feel uncomfortable. This problem gets amplified if you’re a particularly hot or cold sleeper.

Let’s help you get comfier at night.


Body Temperature and Sleep—What’s the Connection?

Changing Body Temperature

Firstly, when picking out home bedding you need to accommodate your body temperature. While adults usually have a stable core body temperature of 37°C during the day, there are fluctuations at night as part of a person’s natural sleep-wake cycle:

  • Your body’s temperature starts dropping even before you fall asleep, along with a release of melatonin, all to promote better sleep.
  • Once asleep your body will get slightly colder.
  • The body warms up again as part of the process of naturally waking you and making you more alert.

Furthermore, you may be a hot or cold sleeper that experiences temperature in a more extreme way than others, resulting in discomfort and disrupted sleep. For example, high core temperatures can hamper slow-wave sleep which is essential for restorative activity in the body. Also, when you’re too cold it’s much more difficult to relax, which prevents you from getting quality sleep.

How Bedding Determines How Warm You Sleep

The body’s temperature cycles prove the value of investing in sheets that are appropriate for almost any environment, such as Comfy’s quality Pure Cotton range. One of its standout features is that it will keep you comfortable throughout the year, so it will also serve you well as your body goes through various cycles while you sleep.

Furthermore, quality home bedding has features that can help regulate temperature in bed:

  • Breathability: Your bed sheets must allow for proper airflow to help create a comfortable, cool sleeping environment, instead of heat being trapped.
  • Moisture wicking: If sweat is trapped against your body, you’ll wake up sticky and uncomfortable. Moisture wicking fabrics channel sweat away from your body, making it easy to maintain a comfortable environment throughout the night.
  • Hypo-allergenic and skin-friendly: If you have sensitive skin, abrasive fabrics can spark skin irritations and paired with sweating at night you’ll end up itchy and uncomfortably. With soft, hypo-allergenic fibres that won’t cause allergic reactions, you have one less thing that can ruin your sleep.


Cold vs Hot Sleepers—Which One are You?

Fact: two people in the same bedroom with similar clothing on can use the same bed and bed sheets but one will complain of how stuffy the room feels, while the other shivers and pulls the covers close.

This common occurrence is thanks to some individuals falling into one of the following categories:

  • Hot sleepers: A hot sleeper may usually feel warmer than many other individuals, not only when sleeping. At night it can result in excessive sweating. Reasons for sleeping hot include having a high core temperature.
  • Cold sleepers: A cold sleeper is simply more sensitive to low temperatures. The body’s goal of wanting to conserve core body heat makes the atmosphere around you feel colder compared to how others perceive it.


What Causes Hot or Cold Sleeping?

Being a hot or cold sleeper doesn’t mean there’s something wrong with you. Multiple factors determine how you experience a certain sleep environment.


Your body’s temperature-regulating processes are central to how comfortable you’ll feel when in bed. Studies show that women often have higher core temperatures, making it more difficult to regulate their comfort when it gets really cold. Females are also unique in terms of the types of fat they have and their bodies naturally send blood to important areas of the body. This causes colder feet and fingers compared to most men.

Perception and Temperature Tolerance

You can have a natural tolerance for colder temperatures and therefore not feel as uncomfortable as others in winter. Each person has a unique view of ‘cold’ and ‘warm’ and if in your opinion it’s too cold or hot, you’ll feel uncomfortable.


Your perception of ‘cold’ and ‘hot’ could stem from past experiences and upbringing. For example, on a cold winter night, someone who grew up in cold Sutherland (officially the coldest town in South Africa) will feel more comfortable than someone from humid KwaZulu Natal.

Clothing and Bedding

Anything you wear or sleep under will affect how you experience temperature:

  • Tight-fitting clothes can hamper blood flow, stopping your body from managing temperature naturally.
  • Bedding determines airflow and whether moisture (sweat) or heat gets trapped.
  • Falling asleep tightly wrapped in a blanket out of habit could result in excessive sweating once your temperature starts rising early morning.

Bedroom Temperature

The bedroom environment directly impacts how comfortable you sleep. For example, a stuffy room with no air flow will make it difficult to get comfortable, whether you’re a hot sleeper or not.

By taking your body and your environment into consideration—and thanks to quality sheets—it is possible to improve your sleep experience.


How to Pick the Right Sheet

General Guidelines

When picking out bed sheets, certain general features are important to compare:

  • A higher thread count can mean more durability and softness
  • Pick the right size sheet for your bed, because too big leads to tangling
  • You may need a hypo-allergenic fabric if you have sensitive skin
  • Pick colours to create an aesthetically pleasing environment with the power to put you in a good mood

However, fabric types play an important role in ensuring your comfort.

Pick the Right Fabric

Today’s market offers a wide variety of fabrics, all with their advantages.


Polyester isn’t the coolest fabric but it has exceptional moisture-wicking properties. Instead of simply absorbing moisture like some fabrics, polyester uses its fibres as channels to move moisture, such as sweat, away from your body. It travels towards the sheet’s exterior where it can evaporate easily. This is called capillary action.

Moisture wicking fabric is a good option for anyone who often experiences night sweats.


Cotton is popular especially because of its breathability, which promotes airflow around your body, allowing hot air to escape. Breathability of cotton is thanks to the fibres’ shape, very similar to ribbons. When woven together there’s still enough space for air to travel through.

In addition, cotton fibres are hydrophilic with great capacity for absorbing moisture—even as much as 27 times the fibres’ weight. Therefore, sweat will easily be removed from your skin when sleeping under cotton sheets, so there’s less chance of waking up from the stickiness of sweating.

The thicker cotton fabrics are, the less breathable they become. So, when shopping for bed sheets you can pick thinner for warm sleepers and thicker for cold sleepers.

Cotton Rich Products

When combining cotton with other fibres, such as our Cotton Rich range, you get the benefits of both fabrics. Comfy’s blend of 60% cotton and 40% polyester gives you moisture wicking features, along with breathability and durability.

This cotton blend will keep you comfortable on hot summer nights thanks to its capacity to breathe. However, when shopping for winter this is still a good option as some people find it keeps them a bit warmer than an all-cotton sheet.

100% Pure Cotton

As mentioned above, cotton gives you breathability and comfort. A 100% pure cotton sheet is a great all-rounder since for many people it works in both cold and warm seasons. However, it’s a favourite for those who easily get hot at night.

Pima Cotton

Pima cotton is unique because it’s sourced from a different plant than traditional cotton. The fibres are longer and feel softer. It also has great moisture wicking abilities to benefit hot sleepers.

Pima cotton is another versatile fabric, so use it all year round. In summer you’ll appreciate the breathability and lightweight features and the soft texture of 320 thread count fabric will feel snug in winter.


How Does Comfy Help Cold and Hot Sleepers?

Comfy understands the importance of getting enough sleep and temperature doesn’t have to stand in your way of getting it. In our product range and services, we make it easy for both cool and warm sleepers to enjoy comfort.

Quality Fabrics

Our fabrics are of the highest quality so you can expect soft surfaces and durability so sheets won’t easily fray. This means fewer skin irritations that can so easily become aggravated when you sweat at night.

Fabrics for All Year Round

With 100% pure cotton as well as Pima cotton sheets, you have multiple options that can help you sleep more comfortably throughout the year. With our cotton rich range of sheets, you get the benefits of both cotton and polyester.

Build Your Purchase

Pick a bundle in one of our fabric ranges, or pick from different ranges for each bedding item. Perhaps you want 100% pure cotton sheets or duvet covers to keep you cool, but you want Pima cotton pillow cases? Simply place your order accordingly and we’ll ship it to you.


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