Sleep well. Live better.™

Sleep on your schedule.

Our patented bed tent design creates a private, dark sleep zone around your upper body and blocks 99% of unwanted light, day or night.

Shop zDen Sleep Dens
  • CPSC compliant, OEKO-TEX certified non-toxic fabric icon

    CPSC + OEKO-TEX

  • Sleep day or night icon

    Sleep day or night

  • CPAP complementary compatible icon

    CPAP friendly

  • Supports migraine recovery icon

    Migraine recovery

  • 14 days risk-free icon

    14 days risk free

Bedroom with ambient light and zDen on bed

Calm the chaos™ with science-backed darkness

Even a tiny glow from a nightlight, charger, or digital clock can disrupt sleep. Blackout curtains help, but they cannot block in-room light sources. zDen is a light-blocking bed tent that creates a private dark sleep zone around your upper body and blocks 99% of unwanted light when the drapes and window flaps are closed.

Ready for better sleep
Bedroom with ambient light and zDen on bed

Got sleep?™ Transform your sleep with zDen

Better sleep changes everything. More energy, more focus, and more patience, because your mind and body finally get the reset they need. zDen helps make that kind of rest possible, at night or during daytime sleep.

When good sleep doesn’t come easy

Maybe your room never gets dark enough. Maybe your schedule is upside down. Maybe you need more privacy in a shared sleep space. zDen helps create the conditions your body needs for calmer, more consistent sleep.

zDen is for people who:

  • Wake up too early from unwanted light
  • Work night shift or sleep during daytime hours
  • Share a sleep space with different schedules
  • Travel often and struggle to rest in unfamiliar rooms
  • Experience migraines or light sensitivity
  • Want better sleep without blacking out the whole room
  • ★★★★★

    Perfect for Shift Workers

    zDen really blocks out the light, is very roomy, and helps us wake very refreshed, especially if you work 3rd shift and sleep during the day!

    — Matt / Pennsylvania

  • ★★★★★

    Eye Mask Alternative

    "zDen sleeping tent does a perfect job of keeping out light and early morning sunlight, and unlike the eye mask, I don’t have to worry about it falling off."

    — Liam / California

  • ★★★★★

    Drug-Free Alternative
    zDen (blackout tent) is a game changer! I sleep more, don’t need melatonin or NyQuil. This is the first time I've been able to sleep in!

    — Natalie / Washington, D.C.

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  • Patent seal with U.S. Utility and Design patent numbers for zDen bed tent.

    Patented Innovation

    Our unique patented bed tent design creates a private, dark sleep zone around your upper body, blocking 99% of unwanted light, so you can sleep on your schedule.

  • Sleep expert approved seal

    Sleep Expert Approved

    Sleep professionals endorse zDen for enhancing sleep quality and promoting rest. "An amazing tool... effective alternative," says Funke Afolabi-Brown MD, FAASM. Author of best-selling book Beyond Tired

  • CPSC compliant and OEKO-TEX certified seal

    Safety & Quality Certified

    zDen is CPSC compliant, lead and phthalate-free (intended for age 5+), OEKO-TEX® STANDARD 100 certified.

Danielle Fujii, creator of zDen, with zDen sleep den, got sleep?" shirt

Created with purpose


zDen was created to solve a real problem, sleeping in a world full of unwanted light. What started as a personal solution during migraine recovery became a portable sleep den used by students, parents, shift workers, frequent travelers, and anyone who needs darkness on demand.

Read our story

Why darkness matters

Research has found that sleeping with moderate ambient light can affect next-day physiology. That is why zDen focuses on creating a darker sleep zone where it matters most.

What sets zDen apart

✅ Unique patented upper-body design for comfort and easy in and out
✅ Designed for safety, no hard corners, sharp edges, or zippers
✅ Blocks unwanted light from outside and inside the room
✅ Portable, sets up in seconds
✅ No tech, no app required
✅ CPSC compliant, OEKO-TEX® certified

  • ★★★★★

    Naptime Savior!
    So helpful for our kids! I had a feeling zDen would be great for them cause our little ones kept crawling into mine! Sure enough, they love sleeping in their zDens (sleep tent)! And they sleep better and deeper - and so do I!

    — Ed / California

  • ★★★★★

    Hotel Travel Companion
    Your DEN has become my life saver for the last couple of months — completely protecting me from any cold air blowing directly at me — better sleep and no worries about getting a cold.

    — Max / Switzerland

Person sleeping in zDen sleep den during daylight

Unlock better sleep with a private dark sleep zone.

No matter your schedule or sleep space, zDen helps reduce unwanted light so rest can happen day or night.

Shop zDen

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OUR COMMITMENT: PROUDLY SUPPORTING OUR COMMUNITY

At zDen, we believe in supporting organizations that align with our mission of health, well-being and compassion. We proudly support the following incredible organizations:

If you share our values and are interested in exploring a partnership with us, please don't hesitate to reach out to us at info@myzDen.com.