Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Coil Comfort Pillowtop Full Size Mattress and Box Spring Set
Product description: The Coil Comfort Pillowtop is an affordable, very comfortable doublesided pillowtop mattress and box spring set. Medium to soft and very beautifull fabric. The mattress is 11 inches high and the box spring is 8" high approx. Comes with a 10 year warranty. Innerspring coil mattress, great quality. A get a lot for your money kind of mattress. Full size mattress is 54"x75". The box spring is approx 8" high. STEAL OF A DEAL!
Product feature: 490 innerspring coil unit, with 13 gauge unit and 6 gauge border, 8 double edge guards-better border support, 1" stitch shoddy pad on each side, 2 x 1/2" polly foam on both sides, Heavy damask stitch bond fabric-class B, Quilted with 3 x 1/2" polly foam Pillow attached to top and bottom of mattress, 1 1/4" super soft foam for each pillow, Tack in jump cover, Height Approx. 11", 10 yr warranty, Bed Frame is NOT included. Must provide a working phone number for shipping
Product price: $337.00
Product brand: Comfort Bedding
Target attributes: Topper Type
Answer: attribute: topper type
value: pillowtop
source: product description
attribute: topper type
value: pillowtop
source: product title