Unhappy1,
We are sorry to hear that your mattress did not fully expand. This mattress should expand within 48 hours of opening. Seeing how this is not the case, we will of course help you file a warrant claim for a replacement or work with you to find another solution.
Please reach out to us at: cs@linenspa.com or call us at 800-560-9239 with more information and we will get this situation resolved for you.
Thanks! -The Linenspa Crew