The Warmth of Wellbeing: Designing a Comfortable Home Climate
How temperature, humidity and airflow shape sleep, mood and the way a home feels.
WORDS Kaye Preston
Warmth is not simply a number on a thermostat. It's a sensation that shapes how we sleep, think and feel. The conditions inside our homes – temperature, light, sound and air – influence our health and wellbeing. How warm or cool we feel, shaped by temperature, humidity and airflow, affects sleep, mood and focus. Comfort is deeply personal, influenced by clothing, activity levels, age and metabolism. While much of the research has focused on offices, where environmental conditions are measured against productivity, our homes shape us just as profoundly. The question is how these principles translate into domestic life.
Temperature and Health:
The World Health Organization notes that maintaining a safe indoor temperature is essential for health. In colder climates, a minimum indoor temperature of 64.4°F (18°C) is recommended through winter. Extreme cold increases the risk of cardiovascular and respiratory illness, while excessive heat can affect mental health. Although different rooms serve different purposes, keeping the home within a moderate range – approximately 67 to 82°F (19 to 27°C), according to ASHRAE (The American Society of Heating, Refrigerating and Air-Conditioning Engineers) – helps reduce health risks and support overall wellbeing.
Maintaining Internal Balance:
Our bodies strive to maintain a steady internal temperature of around 98.6°F (37°C), a process that becomes more demanding in extreme heat or cold. We are always adjusting – releasing heat when it’s warm, conserving it when temperatures drop. Comfort depends on more than a thermostat setting. Humidity, air movement, radiant heat, activity levels and what we wear all influence how a space feels.
Maintaining indoor humidity between 40–60 percent is ideal; ASHRAE advises keeping it below 65 percent to prevent mold and mildew. Air speed also matters: a gentle breeze can feel refreshing, while a draft prompts us to layer up. Radiant warmth – from a sunlit wall or a chair warmed by afternoon light – can make a room feel warmer without raising the air temperature. Clothing and metabolic rate further shape how we experience a space. When these elements are balanced, the home begins to feel steady, supportive and restorative.
Styling by Colin King. Photo courtesy of Rich Stapleton
Strategies for a Comfortable Indoor Climate:
Creating a comfortable home climate goes beyond adjusting the thermostat. It means considering radiant heat, humidity and insulation together, reducing reliance on heating and cooling systems. Programmable thermostats and smart systems can help fine-tune temperature efficiently, while addressing drafts and improving insulation supports consistency and reduces energy loss.
Materials also play a role. Stone or brick can absorb heat during the day and release it slowly as temperatures fall. Proper ventilation manages humidity, while dehumidifiers or houseplants may help regulate moisture in damp areas. Clay plaster wall finishes can naturally moderate humidity, contributing to a more balanced indoor environment.
Heavier curtains or blinds made from natural, certified fabrics – such as those carrying Global Organic Textile Standard (GOTS), OEKO-TEX or Greenguard certifications – improve insulation while limiting exposure to off-gassing from synthetic materials. Adequate ventilation remains essential to prevent condensation. Beyond interiors, natural landscaping can support seasonal regulation: deciduous trees provide shade in summer and allow sunlight to warm the home in winter.
Each room benefits from temperature settings that reflect its use, supporting both comfort and efficiency.
Cultiver's Piped Linen Duvet Cover Set. Photo courtesy of Cultiver
Bedrooms:
For adults, a cooler environment for sleeping, ideally between 60–68°F (15.6-20°C), corresponds with the body's natural cooling during the night, fostering a deeper state of rest. Overly warm rooms can disturb sleep, causing restlessness and dehydration, which impairs the body’s heat regulation and can lead to fatigue. Babies’ and young children’s bedrooms should be kept warmer, around 68–72°F (20-22.2°C).
- Choose breathable bedding, opting for natural fibers like cotton or linen for improved air circulation and temperature control. Add layers to maintain comfort throughout the night.
- Promote air circulation with an open window or a quiet fan.
- Use a dehumidifier or a humidifier to keep humidity at a comfortable level.
- Darkening curtains or blinds can help keep the room cool during warmer months, but be mindful of materials. Many full blackout options are synthetic and may off-gas chemicals that affect air quality.
- Ensure proper ventilation, especially when using darkening curtains, by slightly opening windows or incorporating air-purifying plants to maintain air quality.
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Living room designed by House of Grey with Palus rug from Armadillo. Photo courtesy of Felix Speller |
Armadillo Terra Rug. Photo courtesy of Armadillo |
Living Areas:
In living spaces, temperatures around 68–71.6°F (20–22°C) can create an inviting atmosphere for relaxation and socializing.
- Use dimmers or adjustable LED lighting to create warmth without adding excess heat.
- Layer textiles, using throw blankets or area rugs to adjust individual comfort without altering the room's temperature.
- Consider the placement of furniture to take advantage of natural radiant heat from windows in the winter, while using drapes or shades in the summer to minimize heat absorption.
Home Offices:
The temperature in your home office is key to maintaining focus. Research suggests focus is strongest in moderately warm environments. Extremes in temperature can be distracting and make sustained focus more difficult.
- Adjustable window treatments can help manage natural light and minimize screen glare, contributing to both visual comfort and temperature regulation.
- Small, personal comfort devices such as a heated blanket or desk fan can provide immediate comfort without changing the overall temperature of the whole room.
- Place your desk near a source of natural light to benefit from radiant warmth during colder months, while having the option to shade the window to stay cool when it’s warmer.
- Manage humidity with indoor plants that can absorb excess moisture, or a small dehumidifier to keep the air comfortable for enhanced concentration.
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Country House designed by Nainoa Architecture. Photo courtesy of Nainoa Architecture |
Vila Petricor designed by CO-LAB Design Office. Photo courtesy of César Béjar |
Kitchens:
An ideal kitchen temperature is between 64.4–68°F (18–20°C), accommodating the heat generated by cooking while maintaining comfort.
- Activate exhaust fans when cooking to remove excess heat.
- Ensure proper ventilation to manage both temperature and humidity, which can rise quickly during cooking or dishwashing.
- Consider using smaller appliances where possible such as slow cookers or air fryers instead of the oven.
- Open windows for cross-ventilation to prevent the kitchen from overheating during meal prep.
- Use materials like natural stone and tiles for floors or backsplashes to help stabilize the room temperature.
Bathrooms:
Bathrooms should be slightly warmer than the rest of the home, at 71.6–75˚F (22–24°C), to ensure comfort during bathing and grooming routines. Balanced warmth and humidity help prevent mold and mildew, supporting respiratory health.
- Always use ventilation fans during and after showers to expel humidity and maintain a comfortable temperature, reducing the risk of mold.
- Moderate water temperature as excessively hot showers can overheat the room and increase humidity levels.
- Install heated towel rails to provide warmth and help towels dry fully, preventing dampness.
- Consider radiant floor heating for consistent warmth that prevents the discomfort of cold tiles.
Creating a comfortable home climate is not about precision, but awareness. When temperature, humidity and airflow are thoughtfully balanced, the body doesn’t need to work as hard to regulate itself. A well-tempered home supports us – not through dramatic interventions, but through subtle adjustments that allow us to feel at ease in our own space, season after season.
Featured Image: Katrine Rohrberg
Photography: Rich Stapleton, Felix Speller, Armadillo, Nainoa Architecture, César Béjar
