D1

$49.90
Shipping calculated at checkout.

D1 is a customizable mandibular advancement device designed to help reduce snoring and support healthier nighttime breathing. Easy to fit at home and comfortable for nightly use.

  • 30-Night Money-back Guarantee
  • Excellent Value

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Reviews

Explore the profound ways in which D1 brings about life-altering changes.

“It’s not instant, but it gets better over time. Around week two I noticed I was sleeping more deeply and waking up less.”

Julian Mercer

“Bought it mainly because of the price, but it ended up working better than expected. My partner definitely notices the difference.”

Aaron Blake

“First few nights felt a bit strange, not gonna lie. After that it settled in and now I don’t really think about it anymore.”

Connor Hayes

What's in the box

  • MAD D1 × 1
  •  Handle × 1
  •  Instruction Booklet × 1
  •  Storage Container × 1

FAQs

Does D1 really work on the first night?

Yes. Most users feel the silence immediately. However, for long-term effectiveness and joint safety, you must commit to the OSMILER Care™ 6-Week Journey to allow your muscles to adapt correctly.

Why is the 6-week journey mandatory? Can I skip it?

No. Sleep improvement is a systematic process. The D1 device is designed to work in tandem with our expert guidance. Skipping the program or adjusting too quickly can lead to jaw soreness and ineffective results. Adherence is the core of your success.

How do I find the most accurate adjustment position?

We use the Proportional Setback Method: 1. Find your Maximum Tolerable Advancement (MTA); 2. Follow our guided Proportional Setback to lock your Optimal Therapeutic Advancement (OTA). This ensures airway support while protecting your TMJ.

Are there side effects?

Increased salivation or mild jaw tightness is normal during adaptation. If you experience sharp pain or your jaw feels "locked," stop immediately and contact our support team. Following the Setback Rules is the best way to prevent these risks.

What if I follow the 6-week plan and it still doesn't work?

We offer a 30 day worry free refund guarantee (Enjoy or Refund Guarantee). If you have fully completed the 6-week care journey and followed our precise path, and the results still do not meet the standards, we will issue a full refund. Your long-term sleep health is more important than a single order.