Quick summary: The Sunday 100 Nights Trial starts from delivery day and lets you return any eligible product within 100 nights. Try it at your pace—with no pressure, penalties, or partial refunds.

The Sunday 100 Nights Trial is designed for people who want to sleep smarter—not just shop faster. We get that the right mattress can't be judged in 10 minutes at a store. So instead of rushing your decision, we give your spine and your sleep a full 100 nights to settle in. No fake urgency. No buyer’s remorse.

Whether you’re buying a Sunday mattress or trying our Delight Pillow or other sleep accessories, this trial gives you room to decide—without any pressure.

Why 100 Nights?

Your spine needs time to adjust to a new sleep surface—usually around 3 to 4 weeks. So instead of a 5-minute showroom test, you get 100 full nights in your own bedroom, at your own pace.

How the 100 Nights Trial Works

  • Your trial starts from the day the mattress or accessory is delivered.
  • You receive a brand-new product—never a refurbished one.
  • Try it out, adjust to it, and if it’s not the right fit, return it anytime within 100 nights for a full refund.
  • There are no penalties, hidden deductions, or awkward phone calls.
  • We check in with you periodically during the trial to offer guidance or help troubleshoot any discomfort.
  • If you want to talk to a real human, we’re available by phone, email, or even on-site support if needed.
  • We do recommend using the product for at least 30 nights to allow your body time to adapt—but the choice to return can be made at any time during the trial window.

Watch How It Works

Need More Info?

To get the most out of your trial, we strongly recommend reading these support articles:

This article is for informational purposes only and does not constitute a legal contract. If you have any questions, please email us at hello@sundayrest.com.