Twin Mattress, BedStory 6 Inch Single Mattress Medium Firm, Breathable Matelas Simple, Hybrid Spring Mattress Twin Size in a Box, Supportive Mattress for Single Bed, CertiPUR-US Certified - 38x74 Inch : Amazon.ca:
VADSÖ Spring mattress, firm/light blue, Twin - IKEA CA
Ashley Sleep Mattresses Limited Edition Pillowtop M62711 Twin Mattress (Twin) from Cohens Home Furnishings