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Cancel your STELLAR SLEEP CA subscription by mail

For STELLAR SLEEP CA the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. Post for STELLAR SLEEP CA is handled in Walnut, United States, which is where your letter is headed.

Let Postbye cancel STELLAR SLEEP CA for you

We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.

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Postbye is not affiliated with STELLAR SLEEP CA.

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  • 2 STELLAR SLEEP CA cancellations handled this month
  • Certified mail with tracking
  • Mailed every business day
  • Delivery proof sent to you
  • We confirm your cancellation

How to cancel STELLAR SLEEP CA by mail

  1. Collect the details you need

    You will need the name and email on the account and, if you have one, an account or customer number. Use exactly the details STELLAR SLEEP CA holds, so the request can be matched to your account.

  2. Set out the request

    State plainly that you want the STELLAR SLEEP CA account cancelled, further charges stopped and a written confirmation sent to you. Postbye sets this out in a ready English template (“Subject: Subscription termination – STELLAR SLEEP CA”).

  3. Send the letter by certified mail

    Mail the letter by certified mail to the Walnut address in the next section, and keep the tracking number.

  4. Keep the proof of delivery

    File the receipt with the letter. A STELLAR SLEEP CA charge dated after delivery is the one to dispute, and these two documents are what you quote.

With Postbye, steps 2 to 4 take about two minutes of your time.

Where your STELLAR SLEEP CA cancellation letter goes

STELLAR SLEEP CA340 South Lemon AvenueWalnut, CA 91789

STELLAR SLEEP CA can be reached by post at 340 South Lemon Avenue, Walnut, CA 91789.

Walnut is in California (ZIP 91789), a domestic address for certified mail within the United States.

The letter greets the reader with “To Whom It May Concern,”; your own details sit under the labels Name, Address and E-mail.

Prefer to write it yourself? Use our letter template

Every address we hold for STELLAR SLEEP CA, with the envelope wording

Before you cancel STELLAR SLEEP CA, check these

  • Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
  • Use the same name and email as on the account. A mismatch can delay the request.
  • Check your next statement: no charge should appear after the cancellation date.

Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.

Let Postbye cancel STELLAR SLEEP CA for you

We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.

Cancel STELLAR SLEEP CA

How cancelling by mail works

A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.

Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.

STELLAR SLEEP CA cancellation at a glance

How STELLAR SLEEP CA accepts cancellations
By mailed letter
Mailing address on file
STELLAR SLEEP CA 340 South Lemon Avenue Walnut, CA 91789
Country
United States
Letter language
English (template en)
Added to the database
May 18, 2026
Data last checked

STELLAR SLEEP CA cancellation questions

Where do I send my STELLAR SLEEP CA cancellation letter?

Address the letter to STELLAR SLEEP CA, 340 South Lemon Avenue, Walnut, CA 91789.

How long does a cancellation letter to STELLAR SLEEP CA take?

STELLAR SLEEP CA's address is in California. USPS states that First-Class Mail is delivered in 1 to 5 days. The delivery receipt records the day your letter actually arrived, and that is the date to quote. USPS: First-Class Mail

What do I need to cancel STELLAR SLEEP CA?

Have the name and email on the account and, if you have one, an account or customer number to hand. The details in the letter need to match what STELLAR SLEEP CA has on file.

Will STELLAR SLEEP CA confirm my cancellation?

The letter asks STELLAR SLEEP CA to end the account, stop further charges and confirm in writing, but a reply is not guaranteed. What you can rely on is the delivery receipt: it shows the date STELLAR SLEEP CA received the request. If a charge posts after that date, quote the receipt with your copy of the letter.