Continental Sleep 0.75-Inch Standard Mattress Support Wooden Bunkie Board/Slats, Twin XL, Beige Price: $178.34 (as of 03/05/2021 05:51 PST- Details)

PLEASE MEASURE BEFORE ORDERING : These slats fit standard Size bed. Please measure to make sure this will fit the width of your bed
SLATS IS STRONG : enough to be used directly on bed frame
ELIMINATES NEED FOR LINKED SPRINGS : the bed slats are connected for easy installation

Usually ships within 3 to 5 weeks.