This bed from Overstock.com has a mattress that lifts up to reveal a hidden storage compartment. – Source: https://www.overstock.com/Home-Garden/Greatime-Leatherette-Hidden-Storage-Bed/12833611/product.html?refccid=NDSA4GCPC4IIVTKIAOMFZXRS6Q&searchidx=65&utm_campaign=Pinterest%20Buy%20Button&utm_medium=Social&utm_source=Pinterest&utm_content=pinterest-buy-button-1e8b249e8-b7f1-434e-9887-41e09e43635e