{"id":391,"date":"2026-01-12T00:00:00","date_gmt":"2026-01-12T00:00:00","guid":{"rendered":"https:\/\/www.bumblebeeblinds.com\/boulder-co\/blog\/can-blackout-drapery-really-make-your-room-dark"},"modified":"2026-05-14T18:29:45","modified_gmt":"2026-05-14T18:29:45","slug":"can-blackout-drapery-really-make-your-room-dark","status":"publish","type":"post","link":"https:\/\/www.bumblebeeblinds.com\/boulder-co\/blog\/can-blackout-drapery-really-make-your-room-dark\/","title":{"rendered":"Why Blackout Drapery Alone Rarely Achieves Full Darkness"},"content":{"rendered":"\n

If you\u2019ve ever tried to sleep through one of Boulder\u2019s bright mornings \u2014 especially in summer \u2014 you\u2019ve probably found yourself searching for blackout drapery<\/a> or blackout curtains. With over 300 days of sunlight each year, Boulder homeowners need window treatments that manage glare, block unwanted light, and create true darkness for restful sleep.<\/p>\n\n\n\n

But here\u2019s the part most people don\u2019t realize: blackout drapery alone rarely provides 100% darkness. It can dramatically reduce light, yes \u2014 but achieving a true blackout requires more strategy than choosing the right fabric.<\/p>\n\n\n\n

Before you invest in custom blackout drapery for your Boulder home, here\u2019s what you need to know about what works, what doesn\u2019t, and what realistic expectations look like.<\/p>\n\n\n\n

Blackout Drapery vs. Blackout Curtains: What\u2019s the Difference?<\/h2>\n\n\n\n

People often use the terms interchangeably, but there is a slight difference:<\/p>\n\n\n\n

Blackout Drapery<\/h3>\n\n\n\n

Custom-made, lined with blackout material, designed to cover your window precisely with proper fullness, length, and hardware. These are higher-end, more effective, and more stylish.<\/p>\n\n\n\n

Blackout Curtains<\/h3>\n\n\n\n

Typically store-bought panels labeled \u201cblackout,\u201d often lighter-weight and usually not fully blackout unless lined with premium materials.<\/p>\n\n\n\n

Custom blackout drapery outperforms blackout curtains every time \u2014 but both still face the same fundamental issue:<\/p>\n\n\n\n

Light leaks.<\/h3>\n\n\n\n

And in Boulder homes with large windows, uneven frames, open floor plans, and high ceilings, light leaks are extremely common.<\/p>\n\n\n\n

Even the best blackout drapery or blackout curtains struggle to eliminate all light because of four predictable problem areas.<\/p>\n\n\n\n

1. Light Gap at the Top<\/h2>\n\n\n\n

Unless your drapery is mounted at the ceiling or inside a recessed track, there is always a small space where early morning sunlight sneaks in. Boulder\u2019s altitude amplifies this \u2014 your room gets bright earlier than you think.<\/p>\n\n\n\n

2. Light Gap Along the Sides<\/h2>\n\n\n\n

Standard decorative rods allow light to pour in on both sides of the window.<\/p>\n\n\n\n

You can reduce this by:<\/p>\n\n\n\n