Stamp check

This stamp is genuine.

Issued by Stellair for the offer below. A genuine stamp always opens on offerhub.stellair.ai.

No. SV-20FB-0F3A
Certificate of verification

Stellair Verified

Stellair certifies that this offer’s terms were confirmed with Casper.

CasperCasper Upgrade Program: 10% off10% off · No end date published
What was checked
  1. Terms checked on the brand’s own pagecasper.com/pages/upgrade-program
  2. Not yet tested by peopleIt’s checked the way a shopper would the next time it changes.
VALID
IssuedNov 4, 2026Terms checked on the brand's own page
Verified byStellair Verificationofferhub.stellair.ai

Covers this version of the offer. If the brand changes anything a shopper relies on, it’s checked again and gets a new number. The brand’s own site is the final word on terms.

Get it at casper.com See the offer