What Is REM Sleep — And Why It’s Important


REM (Rapid Eye Movement) sleep is the stage where most dreaming occurs and when the brain consolidates memories, processes emotions and supports learning. Without sufficient REM, cognitive function, mood regulation and physical recovery can suffer.

Sleep disturbances — such as overheating or uncomfortable bedding — fragment sleep cycles and reduce the time spent in REM.


How Body Temperature Impacts REM Sleep

Your core body temperature naturally falls as you fall asleep — a key trigger for deep and REM sleep. Bedding that traps heat can interrupt this thermoregulation.

  • Trapped heat and humidity increase micro-awakenings.
  • Night sweats and thermal discomfort lead to tossing and turning.
  • Fragmented sleep reduces continuous REM phases.


    Why Breathable Bedding Helps

    Improved Ventilation

    Breathable fabrics allow air to flow, helping dissipate heat and moisture so your body can cool naturally — supporting the onset and maintenance of REM sleep.


    Moisture Management

    Materials that wick sweat away reduce humidity build-up between skin and bedding, preventing the clammy feeling that causes awakenings.


    Consistent Comfort

    Effective temperature regulation means fewer night-time interruptions, so you’re more likely to experience longer, uninterrupted REM cycles.


    What Materials Are Best for Breathability

    When shopping for breathable bedding, consider these fabrics:

    • Natural fibres — cotton, linen and bamboo are highly breathable.
    • High-quality cotton — well-constructed, high-thread-count cotton can be breathable while remaining soft and durable. See our 1000-thread-count bed linen collection for examples.
    • Bamboo — naturally breathable and moisture-wicking; ideal for hot sleepers. Browse our bamboo bed linen range.


      How to Layer Breathable Bedding for Better REM Sleep

      1. Base layer — Mattress protector:

        Choose a protector that offers hygiene and spill protection without trapping heat. We offer a waterproof mattress protector designed to balance protection and breathability.

      2. Sheet layer:

        Use a breathable fitted sheet (cotton or bamboo) and a breathable top sheet to maximise airflow.

      3. Duvet / cover:

        Select a breathable duvet cover and match the tog to the season. Lighter tog for hot months; higher tog for cold months — but always favour breathable materials.

      4. Pillowcase / pillow:

        Pick pillowcases in breathable fabric and consider pillows with natural or breathable fillings to reduce heat retention around your head and neck.


      Real-Life Impact on Sleep Quality

      Research and user reports both suggest that breathable bedding reduces night-time awakenings and improves perceived sleep quality. Many sleepers who switch to bamboo or well-made cotton note fewer night sweats, improved morning energy and more consistent REM cycles.


      Practical Tips for Choosing the Right Breathable Bedding

      • Feel the fabric: breathable fabrics often feel lighter and slightly more porous.
      • Check tog / weight: choose a duvet tog suited to your bedroom temperature and personal warmth preference.
      • Follow care instructions: wash breathable fabrics correctly and regularly to maintain performance.
      • Rotate & air out: regularly airing and rotating bedding prevents moisture build-up and preserves breathability.


      Choosing breathable bedding is a practical and effective step toward improving REM sleep. By supporting natural temperature regulation and reducing disturbances, breathable sheets, duvets and mattress protectors help protect the continuous sleep cycles your body needs.

      Explore breathable options at Victoria Linen: Bamboo Bed Linen, 1000 Thread Count Bed Linen and our Waterproof Mattress Protector.

      Sweet dreams — and better REM sleep!