blackout curtains
/ˈblækˌaʊt ˈkɜːrtənz/
CommonHeavy curtains that block out almost all external light, used for better sleep or room darkening.
Rarely controversial. Installing blackout curtains is consistently framed as a sensible, obvious decision. Often listed alongside white noise machines and sunrise alarms as part of a sleep stack.
Real-world examples4 examples
| # | Example | What it means | Source |
|---|---|---|---|
| 01 | Blackout curtains are the best $40 I've ever spent. My bedroom is a sensory deprivation tank. | Enthusiastic endorsement framed as exceptional value. | x, 2023 |
| 02 | Living in NYC and getting blackout curtains was genuinely a health decision. | Framing a home upgrade as medically necessary in a high-light-pollution city. | |
| 03 | Traveler tip: pack a roll of painters tape and some big garbage bags. DIY blackout curtains in any hotel room. | A workaround for traveling without the real thing. | |
| 04 | If you have a kid and don't have blackout curtains in their room what are you doing. | Judgmental advice framed as obvious parenting wisdom. | tiktok, 2022 |
Use it when
- Someone is recommending them as a sleep improvement.
- Someone is listing home upgrades for better sleep.
- Someone is talking about blocking light in a baby's room.
- A shift worker describes how they sleep during the day.
Do not use it when
- You mean regular curtains that reduce light partially.Use “light-filtering curtains” instead.
Variations and related forms
Origin and context
Blackout curtains date to wartime blackout requirements in the 1940s. As consumer sleep products, they entered mainstream home decor and sleep content around 2015-2020, partly driven by parenting blogs and shift-work communities.
- First seen
- 2010s
- Confidence
- medium
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https://slang.fyi/blackout-curtainsUpdated: 2026-08-28License: CC BY 4.0