The Hillsdale Mercer Metal Daybed is a beautiful Victorian-style daybed perfect for reading relaxing or napping. The bed is crafted from fully welded poured aluminum and super-durable heavy-gauge tubing and wire. Sturdy aluminum castings and old-fash ioned-looking metal provide a quaint antique feel. Ornately carved flourishes and sleigh-style posts will be a beautiful focal point to any room. A daybed support system is included. Optional convenient trundle available. Note: Trundle and mattress a re both optional and not included with basic set. To include select in the?Value Package?field.A trundle is an extra mattress frame stored beneath a daybed which slides out to provide additional sleeping space when needed. Daybeds.com`s optional trun dle packages include a metal pop-up trundle. They can be left in the lowered position or elevated in the pop-up position to align with the primary daybed mattress. The pop-up feature allows the daybed to transform from a twin-size daybed into a king -size bed.Optional mattress is the Deluxe Medium Support Twin Mattress. Crafted with multiple layers of resilient foam filling the Deluxe Medium Support Twin Mattress will provide outstanding comfort and medium-firm support for any twin-size bed or d aybed. Machine tufting and high-performance 2.0 density foam help retain the mattress shape and double layers of polyester on top and bottom provide a clean crisp look. Strong twill fabric holds the tuft of the mattress while tape edge finishing ensu res a proper fit and finish of the mattress cover. The mattress measures 75L x 39W x 8H inches and carries a 10-year warranty.Creating a king-size bed out of a daybed and a pop-up trundle is easy and with the Create-A-King mattress connector it will be so comfortable you`ll never know it comprises two twin mattresses. The Create-A-King isn`t necessary for the transformation but is an excellent way to cover the seam between the two twin mattresses. The Create-A-King mattress connector is availab