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Why do we close curtains at night?

Closing curtains at night serves several important purposes that benefit health, privacy, energy efficiency, and more. Here’s a closer look at the top reasons people close their curtains when it gets dark out.

Why do we close curtains at night?

Protects privacy and provides security

Closing curtains at night prevents people outside from being able to see inside the home. This helps protect privacy and also serves as a security measure by obscuring vision so potential intruders can’t see valuables inside. Drawn curtains make it harder for people to peer in and see who and what is in the home.

Blocks out light for better sleep

Closing curtains blocks outdoor light from streetlamps, car headlights, and other nighttime light pollution. This helps make bedrooms darker for better sleep. The body naturally produces melatonin when it gets dark which facilitates sleep. Keeping bedrooms as dark as possible by closing curtains triggers this response.

Insulates rooms

Closed curtains provide an extra barrier between window glass and living spaces that helps insulate rooms. This insulation regulates room temperatures better so closed curtains can help keep heat in during colder months and block heat from the sun in warmer months. Insulating with curtains reduces reliance on heaters and air conditioners.

Prevents fading of interior furnishings

Leaving curtains open allows sunlight to stream in during the daytime. This constant exposure to the sun’s UV rays causes fading and deterioration of furnishings like upholstery, carpets, wood floors, artworks, and more over time. Drawing curtains at night blocks this damage from occurring while the household sleeps.

Provides added security and privacy

In addition to protecting privacy from peeping toms, closed curtains also make it harder for burglars and intruders to see inside a home. Keeping curtains closed sends a signal that a house is occupied and the occupants value their privacy and security. It is wise to keep curtains closed while away on vacation too.

Saves energy by insulating

Curtains add an extra layer of insulation that reduces reliance on heaters in colder weather and air conditioning during warmer months. The Department of Energy estimates keeping curtains drawn can lower heating and cooling bills by up to 25%. This savings is good for the household budget and the environment.

Allows control over light in the mornings

Natural light first thing in the morning can be abrasive and jarring, especially on weekends when people hope to sleep in a bit. Keeping curtains drawn allows control over when morning light enters bedrooms. This way sleep isn’t disrupted before planned wake-up times.

Provides visual continuity for decor

Interior decorators recommend closing curtains at night for continuity. The look and feel when curtains are drawn provides a finished, decorative appearance. Open curtains during the day and closed curtains at night frames the windows as part of a thought-out decorating scheme.

Prevent damage from moisture and fungi

Closing curtains creates a protective barrier of fabric that prevents condensation from accumulating on window glass at night. This condensation can allow mold and fungi to grow. Keeping curtains drawn blocks moisture from forming and protects window frames from associated damage.

Signal safety and security being valued

Homes with open curtains at night signal no one is actively caring for the property. Criminals seek out these signs of negligence when scoping for targets. Closed curtains, along with other cues like outdoor lighting and a neatly kept landscape, signal safety and security are being valued.

Key Takeaways

  • Closing curtains at night provides privacy, security, and better sleep by blocking outdoor light.
  • Curtains add insulation that allows better climate control and lowers energy bills.
  • Drawn curtains protect interiors from sun damage and moisture accumulation issues.
  • Closed curtains promote safety and make unlawful entry harder while also looking tidy from curbside.


There are many important reasons people close the curtains in their homes when night falls. Doing so signals care and value security in addition to producing practical benefits related to visual comfort, temperature control, budget savings, aesthetics, and asset protection. Making curtain-closing at dusk a standard household practice produces positive effects that enhance wellbeing for years to come.

Frequently Asked Questions

  1. Does closing curtains at night really help you sleep better?
    Yes, closed curtains block outdoor light including street lamps, passing car headlights, and other nighttime light pollution that can interfere with sleep. Drawing curtains triggers melatonin production for better rest.
  2. Should blackout curtains be closed during the day?
    No, blackout curtains are meant to close at night since they block all outdoor light. Allow natural light in during daytime hours by opening blackout curtains.
  3. Which direction should bedroom curtains face?
    Install bedroom curtains on walls with windows, preferably facing away from busy streets and pools of outdoor light like streetlamps. East-facing windows see morning light.
  4. Do closed curtains really save on energy bills?
    Yes, curtains provide insulation against heat and cold. This reduces reliance on heaters and air conditioners, saving up to 25% on energy bills according to Department of Energy estimates.
  5. Should you close curtains when away on vacation?
    Yes, keeping curtains closed while on vacation maintains a tidy appearance that signals someone is still home and caring for the property. This deters burglars looking for vacant homes.
  6. Do curtains fade if left open during the day?
    Yes, sunlight exposure gradually fades and breaks down fabric over time. Close curtains when not in use to maximize their lifespan.
  7. How do curtains help regulate temperature?
    Curtains provide an insulating barrier between window glass and living spaces that reduces heat loss in winter and heat gain in summer. This insulation regulates temperatures.
  8. Is it okay to close curtains in the daytime or should they only be closed at night?
    You can close curtains at anytime to block light or for aesthetics and insulation. Many people only close at night for sleep and reopen during daytime.
  9. Which rooms should have closed curtains at night besides bedrooms?
    Any rooms with windows benefit from closed curtains at night including living rooms, dining rooms, kitchens, nurseries, offices, and bonus spaces.
  10. Does keeping curtains open let bugs into the house?
    Yes, insects and even small animals can enter an open window if the curtain is also pulled back. Keep curtains closed to seal windows and prevent nighttime creature incursions.
  11. Why do hotels leave a small gap in curtains when closed?
    Most hotels use a curved curtain rod so there is no need to leave a gap. Some leave small gaps for ventilation requirements according to building codes and smoke detector visibility.
  12. What about thermal blackout curtains? Are those the best kind?
    For maximum insulation and darkness, thermal blackout curtains are ideal. Look for thick, lined fabric preferably with blackout lining on the back and blackout grommets that seal edges.
  13. Can you close blackout curtains in a nursery during the day?
    Blackout curtains block all light which is useful at night in nurseries. Allow natural light in for circadian rhythm during daytimes by opening blackout curtains.
  14. Does the way you hang curtains make a difference?
    Yes. For best insulation and sealing abilities, extend curtain rods the full width of the window and use extra wide curtains. Pinch pleat tops also seal better when closed.
  15. Can curtains really stop people seeing in from outside?
    Thick lined curtains provide a barrier that obscures visibility into rooms, providing privacy. Sheer or thin curtains offer minimal privacy. Add affordable window film for enhanced privacy.
  16.  Is there a fabric or color that works best?
    Medium to heavy fabrics in darker colors like navy, hunter green, burgundy and brown offer maximum privacy, insulation, and light blocking abilities.
  17.  What about curtains on patio doors instead of vertical windows?
    You can install horizontal curtain rods above patio doors. Another option is vertical divider curtains on side tracks with the ability to fully draw them closed.
  18.  Do energy audits check if you close curtains at the proper times?
    Yes. Energy auditors look at window coverings as part of insulation assessments when conducting home energy analysis. Properly hung, sealed curtains earn credit for efficiency.
  19.  Where should curtains fall relative to windows?
    For full coverage when closed, curtain rods should be mounted so curtain tops extend all the way to the ceiling. Bottoms should puddle on floor between 4 to 6 inches for best sealing and weighting.
  20.  Why are curtain and window manufacturers starting to sync offerings?
    There is a consumer shift demanding a better synergy between curtains and windows as people focus more on efficiency. Manufacturers now provide jointly designed options.

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