For a limited time, get this Simmons Kids Slumber Time Naturally Mattress, $109.99, for free in your cart at checkout when you purchase select Simmons Cribs at Target (eligible cribs are marked "Free mattress with purchase.") This Simmons Kids Slumbertime Augustana 4-in-1 Convertible Crib, normally $349.99 and on sale for $299, gets you the mattress. There is a $40 handling fee. The best shipped price we found on this crib without the mattress anywhere else was $379. It can be used as a crib, a toddler bed, aday and to full size bed with headboard & footboard, although guard rails and conversion rails are sold separately. It is wood with a 90 day manufacturer's warranty. The mattress is 6" thick and has a limited lifetime manufacturer's warranty. Sales tax is charged in most states.