By using our website or placing an order with SleepSync, you agree that the mattress trial applies only to standard-size mattresses purchased from thesleepsync.com and begins from the date of delivery. We recommend using the mattress for at least 30 nights to allow your body to adjust and experience its comfort and support fully. Custom-size products, third-party purchases, and dealer purchases are not covered under the trial. Return requests require photographic evidence and are subject to SleepSync’s final approval based on policy compliance.